Update AppImage

AppImage/ProxMenux-Monitor.AppImage.sha256

@@ -1 +1 @@
-9315f939f10353d0105a6a2cb8f3c7e21b02620a513b52ce9349a088b95751b8  ProxMenux-1.2.1.1-beta.AppImage
+150694a49a5b0a4546a2bf5fedcc0914d37666d0cdeac1d9fdc58793c131b4bd  ProxMenux-1.2.1.1-beta.AppImage

AppImage/components/health-thresholds.tsx

@@ -398,31 +398,30 @@ export function HealthThresholds() {
     if (!leaf) return null
     const key = pathKey(path)
     const editingValue = pending[key] ?? String(leaf.value)
-    // Pick the badge palette from the leaf name so warning rows render
+    // The input border carries the severity colour so the editable field
-    // amber and critical rows render red. `swap_critical` and any other
+    // itself shows what kind of threshold this is — no separate badge
-    // *_critical key fall into the red bucket via the substring check.
+    // duplicating the number, which users mistook for the "real" value.
+    // `swap_critical` and any other `*_critical` leaf falls into the red
+    // bucket via the substring check. A blue ring on top of the colour
+    // border signals "customised vs recommended" — two independent
+    // signals on the same widget.
     const last = path[path.length - 1] || ""
     const isCritical = last.toLowerCase().includes("critical")
     const isWarning = last.toLowerCase().includes("warning")
-    const badgeClasses = isCritical
+    const severityBorder = isCritical
-      ? "bg-red-500/10 text-red-500 border-red-500/30"
+      ? "border-red-500/40 bg-red-500/5 focus-visible:border-red-500"
       : isWarning
-        ? "bg-amber-500/10 text-amber-500 border-amber-500/30"
+        ? "border-amber-500/40 bg-amber-500/5 focus-visible:border-amber-500"
-        : "bg-muted text-muted-foreground border-border"
+        : ""
+    const isCustomised = leaf.customised && !(key in pending)
+    const customisedRing = isCustomised ? "ring-2 ring-blue-500/40" : ""
+    const recommendedTooltip = `Recommended: ${leaf.recommended}${leaf.unit}`
     return (
       <div key={key} className="flex items-center justify-between gap-2 py-1.5 px-1">
-        <span className="text-xs sm:text-sm text-foreground/90 min-w-0 flex items-center gap-2">
+        <span className="text-xs sm:text-sm text-foreground/90 min-w-0">
-          <span className="h-1.5 w-1.5 rounded-full bg-blue-500 flex-shrink-0" aria-hidden="true" />
           {label}
         </span>
         <div className="flex items-center gap-2 flex-shrink-0">
-          <span
-            className={`inline-flex items-center justify-center h-6 px-2 rounded-md border text-[11px] font-mono tabular-nums ${badgeClasses}`}
-            title="Recommended default value"
-          >
-            {leaf.recommended}
-            {leaf.unit}
-          </span>
           <Input
             type="number"
             min={leaf.min}
@@ -430,14 +429,13 @@ export function HealthThresholds() {
             step={leaf.step}
             disabled={!editMode}
             value={editingValue}
+            title={recommendedTooltip}
             onChange={(e) =>
               setPending((p) => ({ ...p, [key]: e.target.value }))
             }
             className={`w-20 h-7 text-xs text-right tabular-nums ${
               !editMode ? "opacity-70" : ""
-            } ${
+            } ${severityBorder} ${customisedRing}`}
-              leaf.customised && !(key in pending) ? "border-blue-500/40" : ""
-            }`}
           />
           <span className="text-[11px] text-muted-foreground w-6">{leaf.unit}</span>
         </div>
@@ -507,9 +505,9 @@ export function HealthThresholds() {
         </div>
         <CardDescription>
           The Health Monitor and notifications fire when these thresholds are crossed.
-          Recommended values are shown with their reference color (amber for warning,
+          Amber inputs are warning levels, red inputs are critical levels. A blue ring
-          red for critical); your edits override them. Leave a value unchanged to keep
+          marks a value you've customised away from the recommended default — hover the
-          the recommended.
+          field to see the recommendation, or use Reset to restore it.
         </CardDescription>
       </CardHeader>
       <CardContent>
@@ -520,14 +518,22 @@ export function HealthThresholds() {
         ) : !tree ? (
           <div className="text-sm text-muted-foreground">Failed to load thresholds.</div>
         ) : (
-          <div className="space-y-4">
+          <div>
             {error && (
-              <div className="flex items-start gap-2 p-2.5 rounded-md bg-red-500/10 border border-red-500/30 text-red-500 text-xs">
+              <div className="mb-4 flex items-start gap-2 p-2.5 rounded-md bg-red-500/10 border border-red-500/30 text-red-500 text-xs">
                 <AlertCircle className="h-4 w-4 flex-shrink-0 mt-0.5" />
                 <div className="flex-1">{error}</div>
               </div>
             )}
 
+            {/*
+              Masonry-style flow via CSS columns: cards keep their natural
+              height (CPU = 2 rows, Disk temperature = 8 rows) and the
+              browser packs them top-to-bottom into 1/2/3 columns based on
+              viewport. `break-inside-avoid` keeps each card whole.
+              Mobile (<md) stays single-column as today.
+            */}
+            <div className="columns-1 md:columns-2 2xl:columns-3 gap-4 space-y-4 [&>*]:break-inside-avoid">
             {SECTIONS.map((section) => {
               const Icon = section.icon
               return (
@@ -568,6 +574,7 @@ export function HealthThresholds() {
                 </div>
               )
             })}
+            </div>
           </div>
         )}
       </CardContent>

AppImage/components/notification-settings.tsx

@@ -492,11 +492,11 @@ export function NotificationSettings() {
       <div className="space-y-2 pt-2 border-t border-border/50">
         <div className="flex items-center justify-between py-1">
           <div>
-            <Label className="text-xs font-medium flex items-center gap-1.5">
+            <Label className="text-xs sm:text-sm text-foreground/80 flex items-center gap-2">
-              <Moon className="h-3.5 w-3.5 text-blue-400" />
+              <Moon className="h-4 w-4 text-blue-400" />
               Quiet hours
             </Label>
-            <p className="text-[10px] text-muted-foreground">
+            <p className="text-xs text-muted-foreground mt-1">
               During this window only CRITICAL events reach this channel.
             </p>
           </div>
@@ -517,29 +517,35 @@ export function NotificationSettings() {
         </div>
         {enabled && (
           <>
-            <div className="grid grid-cols-2 gap-2">
+            {/* Inline label + intrinsic-width inputs. The previous
-              <div>
+                `grid-cols-2 + full-width inputs` rendered weirdly on
-                <Label className="text-[10px] text-muted-foreground">From</Label>
+                iOS Safari (the native time picker centered "22:00"
+                inside a 200-px box with huge empty margins). flex +
+                w-24/w-28 keeps the input tight to the HH:MM text on
+                every viewport and the touch target stays comfortable. */}
+            <div className="flex flex-wrap items-center gap-x-4 gap-y-2 pt-1">
+              <div className="flex items-center gap-2">
+                <Label className="text-xs text-muted-foreground">From</Label>
                 <Input
                   type="time"
                   value={start}
                   onChange={(e) => updateChannel(chName, "quiet_start", e.target.value)}
                   disabled={!editMode}
-                  className="h-7 text-xs font-mono"
+                  className="h-9 w-28 text-sm font-mono"
                 />
               </div>
-              <div>
+              <div className="flex items-center gap-2">
-                <Label className="text-[10px] text-muted-foreground">Until</Label>
+                <Label className="text-xs text-muted-foreground">Until</Label>
                 <Input
                   type="time"
                   value={end}
                   onChange={(e) => updateChannel(chName, "quiet_end", e.target.value)}
                   disabled={!editMode}
-                  className="h-7 text-xs font-mono"
+                  className="h-9 w-28 text-sm font-mono"
                 />
               </div>
             </div>
-            <p className="text-[10px] text-muted-foreground">
+            <p className="text-xs text-muted-foreground">
               {sameTime
                 ? "Set a different start and end time to activate."
                 : live
@@ -571,11 +577,11 @@ export function NotificationSettings() {
       <div className="space-y-2 pt-2 border-t border-border/50">
         <div className="flex items-center justify-between py-1">
           <div>
-            <Label className="text-xs font-medium flex items-center gap-1.5">
+            <Label className="text-xs sm:text-sm text-foreground/80 flex items-center gap-2">
-              <Newspaper className="h-3.5 w-3.5 text-violet-400" />
+              <Newspaper className="h-4 w-4 text-violet-400" />
               Daily digest of INFO events
             </Label>
-            <p className="text-[10px] text-muted-foreground">
+            <p className="text-xs text-muted-foreground mt-1">
               All INFO events (backups OK, updates available, etc.) accumulate during the day and arrive once at this time as a single summary. CRITICAL and WARNING are never delayed.
             </p>
           </div>
@@ -596,17 +602,17 @@ export function NotificationSettings() {
         </div>
         {enabled && (
           <>
-            <div>
+            <div className="flex items-center gap-2 pt-1">
-              <Label className="text-[10px] text-muted-foreground">Send at</Label>
+              <Label className="text-xs text-muted-foreground">Send at</Label>
               <Input
                 type="time"
                 value={time}
                 onChange={(e) => updateChannel(chName, "digest_time", e.target.value)}
                 disabled={!editMode}
-                className="h-7 text-xs font-mono"
+                className="h-9 w-28 text-sm font-mono"
               />
             </div>
-            <p className="text-[10px] text-muted-foreground">{nextLabel}</p>
+            <p className="text-xs text-muted-foreground">{nextLabel}</p>
           </>
         )}
       </div>

AppImage/components/virtual-machines.tsx

@@ -8,7 +8,7 @@ import { Badge } from "./ui/badge"
 import { Progress } from "./ui/progress"
 import { Button } from "./ui/button"
 import { Dialog, DialogContent, DialogHeader, DialogTitle, DialogFooter, DialogDescription } from "./ui/dialog"
-import { Server, Play, Square, Cpu, MemoryStick, HardDrive, Network, Power, RotateCcw, StopCircle, Container, ChevronDown, ChevronUp, Terminal, Archive, Plus, Loader2, Clock, Database, Shield, Bell, FileText, Settings2, Activity } from 'lucide-react'
+import { Server, Play, Square, Cpu, MemoryStick, HardDrive, Network, Power, RotateCcw, StopCircle, Container, ChevronDown, ChevronUp, ChevronRight, Terminal, Archive, Plus, Loader2, Clock, Database, Shield, Bell, FileText, Settings2, Activity, Package } from 'lucide-react'
 import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from "./ui/select"
 import { Checkbox } from "./ui/checkbox"
 import { Textarea } from "./ui/textarea"
@@ -19,6 +19,28 @@ import { LxcTerminalModal } from "./lxc-terminal-modal"
 import { formatStorage } from "../lib/utils"
 import { formatNetworkTraffic, getNetworkUnit } from "../lib/format-network"
 import { fetchApi } from "../lib/api-config"
+import DOMPurify from "dompurify"
+import { marked } from "marked"
+
+// Sent by /api/vms only for LXC rows, only when the user has enabled
+// `lxc_updates_available` notifications. The Monitor populates this
+// from managed_installs registry → frontend uses it to render the
+// inline update badge + the modal's "Pending updates" section.
+interface LxcPackageUpdate {
+  name: string
+  current: string
+  latest: string
+  security: boolean
+}
+interface LxcUpdateCheck {
+  available: boolean
+  count: number
+  security_count: number
+  last_check: string | null
+  latest: string | null
+  error: string | null
+  packages: LxcPackageUpdate[]
+}
 
 interface VMData {
   vmid: number
@@ -36,6 +58,7 @@ interface VMData {
   diskread?: number
   diskwrite?: number
   ip?: string
+  update_check?: LxcUpdateCheck
 }
 
 interface VMConfig {
@@ -622,7 +645,7 @@ export function VirtualMachines() {
   const [backupPbsChangeMode, setBackupPbsChangeMode] = useState<string>("default")
   
   // Tab state for modal
-  const [activeModalTab, setActiveModalTab] = useState<"status" | "mounts" | "backups">("status")
+  const [activeModalTab, setActiveModalTab] = useState<"status" | "mounts" | "backups" | "updates">("status")
   // Sprint 13.29: per-LXC mount points lazy-loaded when the user opens
   // the LXC modal. We fetch alongside backups (one-shot) so switching
   // tabs is instantaneous; the cost is small (parses one config file
@@ -984,6 +1007,74 @@ const handleDownloadLogs = async (vmid: number, vmName: string) => {
   // Ensure vmData is always an array (backend may return object on error)
   const safeVMData = Array.isArray(vmData) ? vmData : []
 
+  // Render the "📦 N updates / 🛡 N security" badge next to an LXC in
+  // the dashboard list. Used ONLY in the card row alongside Uptime —
+  // the modal surfaces the same info via a dedicated tab instead of
+  // duplicating a badge in its header.
+  //
+  // Sizing matches the sibling "Uptime: …" text (text-sm + h-4 icon)
+  // so the row reads as a single visual unit. Colour is violet, the
+  // shared accent for "managed updates" across notifications and UI
+  // (mirrors the Secure Gateway visual treatment). Security count
+  // stays red because it's still an urgency cue independent of the
+  // update theme.
+  const renderLxcUpdateBadge = (
+    uc?: LxcUpdateCheck,
+    compact = false,
+    onClick?: () => void,
+  ) => {
+    if (!uc?.available || !uc.count || uc.count <= 0) return null
+    const last = uc.last_check
+      ? new Date(uc.last_check).toLocaleString()
+      : "—"
+    const topNames = (uc.packages || [])
+      .slice(0, 5)
+      .map((p) => p.name)
+      .join(", ")
+    const secHint =
+      uc.security_count > 0 ? ` · ${uc.security_count} security` : ""
+    // Tooltip leads with the action when the badge is clickable so the
+    // affordance is explicit on hover — the chevron at the end of the
+    // badge reinforces the same signal visually for users who don't
+    // hover (mobile).
+    const tooltipPrefix = onClick ? "Click to view pending packages · " : ""
+    const tooltip = `${tooltipPrefix}Last checked: ${last}${secHint}${topNames ? ` · ${topNames}` : ""}`
+    // Compact = mobile card; matches the surrounding 10-12px chrome
+    // (ID line, type badge) so the count doesn't visually dominate.
+    // Non-compact = desktop card row, sized to match "Uptime: ..." text.
+    const sizing = compact
+      ? "text-[11px] gap-1 px-1.5 py-0"
+      : "text-sm gap-1.5 px-2 py-0.5"
+    const iconSize = compact ? "h-3 w-3" : "h-4 w-4"
+    // Only soften the bg on hover — no border change, no focus ring.
+    // The chevron at the end of the badge carries the "open this"
+    // affordance on its own. The Badge component's CVA base adds a
+    // `focus:ring-2 focus:ring-ring focus:ring-offset-2` (the white
+    // double border we kept seeing on tap/click) — explicitly cancel
+    // every piece of it here.
+    const clickable = onClick
+      ? "cursor-pointer hover:bg-violet-500/20 transition-colors focus:outline-none focus:ring-0 focus:ring-offset-0 focus-visible:outline-none focus-visible:ring-0 focus-visible:ring-offset-0"
+      : ""
+    return (
+      <Badge
+        variant="outline"
+        className={`bg-violet-500/10 text-violet-400 border-violet-500/30 flex items-center flex-shrink-0 ${sizing} ${clickable}`}
+        title={tooltip}
+        onClick={onClick}
+        role={onClick ? "button" : undefined}
+        tabIndex={onClick ? 0 : undefined}
+      >
+        <Package className={iconSize} />
+        {uc.count} {compact ? "" : (uc.count === 1 ? "update" : "updates")}
+        {/* Chevron only when the badge is wired up as a clickable
+            shortcut — its absence on the dashboard card avoids
+            implying interactivity where there isn't any (the whole
+            row is the click target there). */}
+        {onClick && <ChevronRight className={`${iconSize} -mr-0.5 opacity-80`} />}
+      </Badge>
+    )
+  }
+
   // Total allocated RAM for ALL VMs/LXCs (running + stopped)
   const totalAllocatedMemoryGB = useMemo(() => {
     return (safeVMData.reduce((sum, vm) => sum + (vm.maxmem || 0), 0) / 1024 ** 3).toFixed(1)
@@ -1111,67 +1202,57 @@ const handleDownloadLogs = async (vmid: number, vmName: string) => {
 
   return (
     <div className="space-y-6">
+      {/*
+        styled-jsx is scoped by default — it adds a hash class to
+        selectors so they only match elements rendered by this
+        component. Content injected via `dangerouslySetInnerHTML`
+        does NOT get the hash, so descendant selectors like
+        `div[align="center"]` never matched the helper-script HTML
+        and notes rendered left-aligned. Wrapping the descendant
+        selectors in `:global(...)` keeps the parent class scoped
+        but lets the inner rules apply to the injected HTML.
+      */}
       <style jsx>{`
         .proxmenux-notes {
-          /* Reset any inherited styles */
           all: revert;
-          
-          /* Ensure links display inline */
-          a {
-            display: inline-block;
-            margin-right: 4px;
-            text-decoration: none;
-          }
-          
-          /* Ensure images display inline */
-          img {
-            display: inline-block;
-            vertical-align: middle;
-          }
-          
-          /* Ensure paragraphs with links display inline */
-          p {
-            margin: 0.5rem 0;
-          }
-          
-          /* Override inline width and center the table */
-          table {
-            width: auto !important;
-            margin: 0 auto;
-          }
-          
-          /* Ensure divs respect centering */
-          div[align="center"] {
-            text-align: center;
-          }
-          
-          /* Remove border-left since logo already has the line, keep text left-aligned */
-          table td:nth-child(2) {
-            text-align: left;
-            padding-left: 16px;
-          }
-          
-          /* Increase h1 font size for VM name */
-          table td:nth-child(2) h1 {
-            text-align: left;
-            font-size: 2rem;
-            font-weight: bold;
-            line-height: 1.2;
-          }
-          
-          /* Ensure p in the second cell is left-aligned */
-          table td:nth-child(2) p {
-            text-align: left;
-          }
-          
-          /* Add separator after tables */
-          table + p {
-            margin-top: 1rem;
-            padding-top: 1rem;
-            border-top: 1px solid rgba(255, 255, 255, 0.1);
-          }
         }
-        
+        .proxmenux-notes :global(a) {
+          display: inline-block;
+          margin-right: 4px;
+          text-decoration: none;
+        }
+        .proxmenux-notes :global(img) {
+          display: inline-block;
+          vertical-align: middle;
+        }
+        .proxmenux-notes :global(p) {
+          margin: 0.5rem 0;
+        }
+        .proxmenux-notes :global(table) {
+          width: auto !important;
+          margin: 0 auto;
+        }
+        .proxmenux-notes :global(div[align="center"]) {
+          text-align: center;
+        }
+        .proxmenux-notes :global(table td:nth-child(2)) {
+          text-align: left;
+          padding-left: 16px;
+        }
+        .proxmenux-notes :global(table td:nth-child(2) h1) {
+          text-align: left;
+          font-size: 2rem;
+          font-weight: bold;
+          line-height: 1.2;
+        }
+        .proxmenux-notes :global(table td:nth-child(2) p) {
+          text-align: left;
+        }
+        .proxmenux-notes :global(table + p) {
+          margin-top: 1rem;
+          padding-top: 1rem;
+          border-top: 1px solid rgba(255, 255, 255, 0.1);
+        }
         .proxmenux-notes-plaintext {
           white-space: pre-wrap;
           font-family: monospace;
@@ -1364,6 +1445,7 @@ const handleDownloadLogs = async (vmid: number, vmName: string) => {
                           </span>
                         )}
                         <span className="text-sm text-muted-foreground ml-auto">Uptime: {formatUptime(vm.uptime)}</span>
+                        {vm.type === "lxc" && renderLxcUpdateBadge(vm.update_check)}
                       </div>
 
                       <div className="grid grid-cols-2 md:grid-cols-5 gap-3">
@@ -1474,7 +1556,10 @@ const handleDownloadLogs = async (vmid: number, vmName: string) => {
 
                         {/* Name and ID */}
                         <div className="flex-1 min-w-0">
-                          <div className="font-semibold text-foreground truncate">{vm.name}</div>
+                          <div className="font-semibold text-foreground truncate flex items-center gap-1.5">
+                            <span className="truncate">{vm.name}</span>
+                            {vm.type === "lxc" && renderLxcUpdateBadge(vm.update_check, true)}
+                          </div>
                           <div className="text-[10px] text-muted-foreground">ID: {vm.vmid}</div>
                         </div>
 
@@ -1575,6 +1660,17 @@ const handleDownloadLogs = async (vmid: number, vmName: string) => {
                               Uptime: {formatUptime(selectedVM.uptime)}
                             </span>
                           )}
+                          {/* Clickable badge — the sole entry point to
+                              the Updates panel now that the tab is no
+                              longer in the nav. Full-size so it reads
+                              at the same weight as the surrounding
+                              Uptime / Type / Status chips. */}
+                          {selectedVM.type === "lxc" &&
+                            renderLxcUpdateBadge(
+                              selectedVM.update_check,
+                              false,
+                              () => setActiveModalTab("updates"),
+                            )}
                         </div>
                       </>
                     )}
@@ -1600,6 +1696,12 @@ const handleDownloadLogs = async (vmid: number, vmName: string) => {
                             Uptime: {formatUptime(selectedVM.uptime)}
                           </span>
                         )}
+                        {selectedVM.type === "lxc" &&
+                          renderLxcUpdateBadge(
+                            selectedVM.update_check,
+                            false,
+                            () => setActiveModalTab("updates"),
+                          )}
                       </div>
                     )}
                   </div>
@@ -1610,7 +1712,7 @@ const handleDownloadLogs = async (vmid: number, vmName: string) => {
               <div className="flex border-b border-border px-6 shrink-0">
                 <button
                   onClick={() => setActiveModalTab("status")}
-                  className={`flex items-center gap-2 px-4 py-2.5 text-sm font-medium transition-colors border-b-2 -mb-px ${
+                  className={`flex items-center gap-2 px-4 py-2.5 text-sm font-medium transition-colors border-b-2 -mb-px whitespace-nowrap ${
                     activeModalTab === "status"
                       ? "border-cyan-500 text-cyan-500"
                       : "border-transparent text-muted-foreground hover:text-foreground"
@@ -1643,7 +1745,7 @@ const handleDownloadLogs = async (vmid: number, vmName: string) => {
                 )}
                 <button
                   onClick={() => setActiveModalTab("backups")}
-                  className={`flex items-center gap-2 px-4 py-2.5 text-sm font-medium transition-colors border-b-2 -mb-px ${
+                  className={`flex items-center gap-2 px-4 py-2.5 text-sm font-medium transition-colors border-b-2 -mb-px whitespace-nowrap ${
                     activeModalTab === "backups"
                       ? "border-amber-500 text-amber-500"
                       : "border-transparent text-muted-foreground hover:text-foreground"
@@ -1655,6 +1757,13 @@ const handleDownloadLogs = async (vmid: number, vmName: string) => {
                     <Badge variant="secondary" className="text-xs h-5 ml-1">{vmBackups.length}</Badge>
                   )}
                 </button>
+                {/* Updates is intentionally NOT a tab in the nav — the
+                    extra tab created a scrolling tab strip on mobile
+                    (especially once Mounts + Backups + Updates piled
+                    up) and the swipe affordance was missed. The
+                    clickable violet badge in the modal header is now
+                    the sole entry point; the Updates content panel
+                    below still mounts when activeModalTab === 'updates'. */}
               </div>
 
               <div className="flex-1 overflow-y-auto px-6 py-4 min-h-0">
@@ -1929,14 +2038,20 @@ const handleDownloadLogs = async (vmid: number, vmName: string) => {
                                     ) : vmDetails.config.description ? (
                                       <>
                                         {(() => {
-                                          // VM/CT notes are operator-controlled but historically were
+                                          // VM/CT notes come in two flavours and we mirror the way
-                                          // rendered via `dangerouslySetInnerHTML` — a stored XSS sink
+                                          // the PVE web UI handles each:
-                                          // for any user with write access to the VM config (a
+                                          //   • HTML (ProxMenux/community-script helper output with
-                                          // non-admin user with PVE permissions, or another admin in
+                                          //     <div align='center'>, tables, logos) → render the
-                                          // a multi-admin deployment). We now render the decoded
+                                          //     HTML verbatim. The stable `main` branch did exactly
-                                          // notes as plain text inside a <pre> with `white-space:
+                                          //     this with dangerouslySetInnerHTML — we keep that
-                                          // pre-wrap` so newlines and indentation are preserved
+                                          //     behaviour but pipe through DOMPurify so the audit
-                                          // without interpreting any HTML. See audit Tier 2 #13.
+                                          //     Tier 2 #13 XSS sink stays closed.
+                                          //   • Plain text / markdown (e.g. qBittorrent's
+                                          //     `## qBittorrent LXC`) → marked turns it into
+                                          //     headings + autolinks + line breaks, matching PVE.
+                                          // Mixing the two paths breaks the HTML one because marked
+                                          // collapses indentation / wraps inline runs and the
+                                          // browser then ignores `align="center"`.
                                           let decoded: string
                                           try {
                                             decoded = decodeRecursively(vmDetails.config.description)
@@ -1947,12 +2062,71 @@ const handleDownloadLogs = async (vmid: number, vmName: string) => {
                                               </div>
                                             )
                                           }
+                                          const looksLikeHtml = /<\/?[a-z][\s\S]*?>/i.test(decoded)
+                                          let html: string
+                                          if (looksLikeHtml) {
+                                            html = decoded
+                                          } else {
+                                            try {
+                                              html = marked.parse(decoded, {
+                                                breaks: true,
+                                                gfm: true,
+                                                async: false,
+                                              }) as string
+                                            } catch {
+                                              html = decoded.replace(/\n/g, "<br>")
+                                            }
+                                          }
+                                          // Promote legacy `align` HTML attribute to a real inline
+                                          // `style="text-align: …"` rule. Tailwind / parent CSS,
+                                          // styled-jsx scoping quirks and Safari's UA stylesheet
+                                          // can all swallow the bare `align` attribute on `<div>`
+                                          // (it's HTML4 obsolete syntax). An inline style is
+                                          // bullet-proof: highest specificity, no scope hash needed.
+                                          DOMPurify.removeHook("afterSanitizeAttributes")
+                                          DOMPurify.addHook("afterSanitizeAttributes", (node: Element) => {
+                                            const a = node.getAttribute?.("align")
+                                            if (a && /^(center|left|right)$/i.test(a)) {
+                                              const cur = node.getAttribute("style") || ""
+                                              const sep = cur && !cur.trim().endsWith(";") ? "; " : ""
+                                              node.setAttribute(
+                                                "style",
+                                                `${cur}${sep}text-align: ${a.toLowerCase()}`,
+                                              )
+                                            }
+                                            // Force `target=_blank` links to open in a new tab
+                                            // safely (noopener prevents reverse-tabnabbing).
+                                            if (node.tagName === "A" && node.getAttribute("target") === "_blank") {
+                                              node.setAttribute("rel", "noopener noreferrer")
+                                            }
+                                          })
+                                          const cleanHtml = DOMPurify.sanitize(html, {
+                                            ALLOWED_TAGS: [
+                                              "a", "p", "br", "div", "span",
+                                              "h1", "h2", "h3", "h4", "h5", "h6",
+                                              "img",
+                                              "table", "thead", "tbody", "tr", "th", "td",
+                                              "ul", "ol", "li",
+                                              "strong", "em", "b", "i", "u", "code", "pre",
+                                              "blockquote", "hr",
+                                              "small", "sub", "sup",
+                                            ],
+                                            ALLOWED_ATTR: [
+                                              "href", "src", "alt", "title", "target",
+                                              "rel", "style", "class",
+                                              "align", "width", "height",
+                                              "colspan", "rowspan",
+                                            ],
+                                            ALLOWED_URI_REGEXP:
+                                              /^(?:(?:https?|mailto|data:image\/(?:png|jpeg|jpg|gif|svg\+xml|webp)):|\/|#)/i,
+                                            ADD_ATTR: ["target"],
+                                          })
                                           return (
-                                            <pre
+                                            <div
-                                              className="text-sm text-foreground proxmenux-notes-plaintext font-sans whitespace-pre-wrap break-words m-0"
+                                              className="text-sm text-foreground proxmenux-notes break-words"
-                                            >
+                                              // eslint-disable-next-line react/no-danger
-                                              {decoded}
+                                              dangerouslySetInnerHTML={{ __html: cleanHtml }}
-                                            </pre>
+                                            />
                                           )
                                         })()}
                                       </>
@@ -2345,6 +2519,118 @@ const handleDownloadLogs = async (vmid: number, vmName: string) => {
                 </div>
                 )}
 
+                {/* Updates Tab — LXC only, conditionally rendered.
+                    Lives in its own tab so the per-package list (up to
+                    30 rows) doesn't blow up the Status tab on mobile.
+                    Violet matches the shared "managed updates" theme. */}
+                {activeModalTab === "updates" &&
+                  selectedVM?.type === "lxc" &&
+                  selectedVM?.update_check?.available && (
+                    <div className="space-y-4" key={`updates-${selectedVM.vmid}`}>
+                      <Card className="border border-border bg-card/50">
+                        <CardContent className="p-4">
+                          <div className="flex items-center justify-between mb-3 flex-wrap gap-2">
+                            <div className="flex items-center gap-2">
+                              <div className="p-1.5 rounded-md bg-violet-500/10">
+                                <Package className="h-4 w-4 text-violet-400" />
+                              </div>
+                              <h3 className="text-sm font-semibold text-foreground">
+                                Pending package updates
+                              </h3>
+                            </div>
+                            <Badge
+                              variant="outline"
+                              className="text-xs bg-violet-500/10 text-violet-400 border-violet-500/30"
+                            >
+                              {selectedVM.update_check.count} total
+                            </Badge>
+                          </div>
+                          <div className="text-xs text-muted-foreground mb-3 leading-relaxed">
+                            Last checked:{" "}
+                            {selectedVM.update_check.last_check
+                              ? new Date(selectedVM.update_check.last_check).toLocaleString()
+                              : "—"}
+                            {" · "}Apply with{" "}
+                            <code className="text-foreground/80">pct enter {selectedVM.vmid}</code>
+                            {" → "}
+                            <code className="text-foreground/80">apt update &amp;&amp; apt upgrade</code>
+                          </div>
+                          {/* Two render modes:
+                              • Full list when every pending package fits
+                                (registry cap is 30 packages per CT — so
+                                CTs with ≤30 updates show every row).
+                              • Summary when the CT has more pending than
+                                the registry stored. Showing 30 random
+                                rows out of 139 misleads the user — a
+                                count + security count + "inspect inside"
+                                hint is honester. */}
+                          {(() => {
+                            const stored = selectedVM.update_check.packages?.length || 0
+                            const total = selectedVM.update_check.count || 0
+                            const sec = selectedVM.update_check.security_count || 0
+                            const truncated = total > stored
+                            if (!truncated && stored > 0) {
+                              return (
+                                <div className="border-t border-border divide-y divide-border/50">
+                                  {selectedVM.update_check.packages.map((p) => (
+                                    <div
+                                      key={p.name}
+                                      className="flex flex-col sm:flex-row sm:items-center sm:justify-between gap-0.5 sm:gap-2 py-2 text-sm"
+                                    >
+                                      <span className="font-mono text-foreground/90 flex items-center gap-2 min-w-0">
+                                        {p.security && (
+                                          <Shield
+                                            className="h-4 w-4 text-green-500 flex-shrink-0"
+                                            aria-label="Security update"
+                                          />
+                                        )}
+                                        <span className="truncate">{p.name}</span>
+                                      </span>
+                                      <span className="flex items-center gap-1.5 text-muted-foreground flex-shrink-0 font-mono text-xs sm:text-sm">
+                                        <span>{p.current || "—"}</span>
+                                        <span>→</span>
+                                        <span className="text-foreground">{p.latest}</span>
+                                      </span>
+                                    </div>
+                                  ))}
+                                </div>
+                              )
+                            }
+                            // Truncated OR no per-package detail — render a summary.
+                            return (
+                              <div className="border-t border-border pt-3 space-y-2 text-sm">
+                                <div className="flex items-center gap-2">
+                                  <Package className="h-4 w-4 text-violet-400 flex-shrink-0" />
+                                  <span>
+                                    <span className="font-semibold">{total}</span> package
+                                    {total === 1 ? "" : "s"} pending
+                                  </span>
+                                </div>
+                                {sec > 0 && (
+                                  <div className="flex items-center gap-2">
+                                    <Shield className="h-4 w-4 text-green-500 flex-shrink-0" />
+                                    <span>
+                                      <span className="font-semibold">{sec}</span> security update
+                                      {sec === 1 ? "" : "s"}
+                                    </span>
+                                  </div>
+                                )}
+                                <div className="text-xs text-muted-foreground pt-1 leading-relaxed">
+                                  Full list available inside the container:{" "}
+                                  <code className="text-foreground/80">
+                                    pct enter {selectedVM.vmid}
+                                  </code>{" "}
+                                  →{" "}
+                                  <code className="text-foreground/80">apt list --upgradable</code>
+                                </div>
+                              </div>
+                            )
+                          })()}
+                        </CardContent>
+                      </Card>
+                    </div>
+                  )}
+
                 {/* Sprint 13.29: Mount Points Tab — LXC only.
                     Renders configured mpX entries first, then any
                     ad-hoc NFS/CIFS/SMB mounts found inside the

AppImage/lib/api-config.ts

@@ -133,6 +133,27 @@ export async function fetchApi<T>(endpoint: string, options?: RequestInit): Prom
         }
         throw new Error(`Unauthorized: ${endpoint}`)
       }
+      // Try to surface the backend's JSON error payload instead of a
+      // bare `500 INTERNAL SERVER ERROR`. The Flask routes consistently
+      // return `{error: "..."}` on failure (e.g. /api/vms/<id>/control
+      // includes the pvesh stderr — telling the user "no space left on
+      // device" is infinitely more useful than the raw status text).
+      try {
+        const ct = response.headers.get("content-type") || ""
+        if (ct.includes("application/json")) {
+          const body = await response.json()
+          const detail =
+            (body && (body.error || body.message)) || ""
+          if (detail) {
+            throw new Error(detail)
+          }
+        }
+      } catch (parseErr) {
+        if (parseErr instanceof Error && parseErr.message.includes("API request failed")) {
+          throw parseErr
+        }
+        // JSON parse failed — fall through to the generic message.
+      }
       throw new Error(`API request failed: ${response.status} ${response.statusText}`)
     }
 

AppImage/package.json

@@ -43,7 +43,9 @@
     "clsx": "^2.1.1",
     "cmdk": "1.0.4",
     "date-fns": "4.1.0",
+    "dompurify": "^3.2.7",
     "embla-carousel-react": "8.5.1",
+    "marked": "^15.0.7",
     "geist": "^1.3.1",
     "input-otp": "1.4.1",
     "lucide-react": "^0.454.0",
@@ -66,6 +68,7 @@
     "zod": "3.25.67"
   },
   "devDependencies": {
+    "@types/dompurify": "^3.0.5",
     "@types/node": "^22",
     "@types/react": "^18",
     "@types/react-dom": "^18",

AppImage/scripts/flask_server.py

@@ -1019,10 +1019,16 @@ def _capture_health_journal_context(categories: list, reason: str = '') -> str:
         if not pattern:
             return ""
         
-        # Capture recent journal entries matching keywords
+        # Capture recent journal entries matching keywords.
-        # Use -b 0 to only include logs from the current boot
+        # Use -b 0 to only include logs from the current boot.
+        # Filter out the Monitor's own stdout (AppRun, [HealthPersistence],
+        # proxmenux-auth, etc.) BEFORE keyword matching — otherwise a startup
+        # line like "[HealthPersistence] Database initialized with 13 tables"
+        # leaks into the AI context because grep -iE 'ata' matches the
+        # substring "ata" in "dATAbase". Self-logs are never system evidence.
         cmd = (
             f"journalctl -b 0 --since='10 minutes ago' --no-pager -n 500 2>/dev/null | "
+            f"grep -vE 'AppRun\\[|proxmenux-auth|\\[HealthPersistence\\]|\\[ProxMenux\\]|\\[NotificationManager\\]|\\[AIEnhancer\\]' | "
             f"grep -iE '{pattern}' | tail -n 30"
         )
         
@@ -1131,12 +1137,28 @@ def _health_collector_loop():
                 'updates': 'update_summary',
             }
 
+            # Sub-categories already rolled up into details['storage']
+            # by _check_proxmox_storage_status. Emitting them as their
+            # own health_degraded entries duplicates the same warning
+            # (e.g. "Storage Mounts & Space" + "PVE Storage Capacity"
+            # both saying "PBS-Cloud (pbs) usage ≥70%"). Skip them at
+            # the notification layer — they still update _prev_statuses
+            # so a future degradation transition is detected normally.
+            _STORAGE_SUBCATEGORIES = {
+                'pve_storage_capacity', 'zfs_pool_capacity',
+                'lxc_disk', 'lxc_mounts', 'remote_mounts',
+            }
+
             for cat_key, cat_data in details.items():
                 cur_status = cat_data.get('status', 'OK')
                 prev_status = _prev_statuses.get(cat_key, 'OK')
                 cur_rank = _SEV_RANK.get(cur_status, 0)
                 prev_rank = _SEV_RANK.get(prev_status, 0)
 
+                if cat_key in _STORAGE_SUBCATEGORIES:
+                    _prev_statuses[cat_key] = cur_status
+                    continue
+
                 if cur_rank > prev_rank and cur_rank >= 2:  # WARNING or CRITICAL
                     reason = cat_data.get('reason', f'{cat_key} status changed to {cur_status}')
                     reason_lower = reason.lower()
@@ -4676,10 +4698,50 @@ def get_network_info():
             'vm_lxc_total_count': 0
         }
 
+def _get_lxc_update_status_map() -> dict:
+    """Read the managed_installs registry and project the LXC update
+    state into a quick lookup ``{vmid: {available, count, security_count,
+    last_check, packages[]}}``. Used to decorate ``/api/vms`` output
+    without forcing the frontend to fetch a second endpoint.
+
+    Returns an empty dict if the registry module isn't available or
+    nothing is registered — callers must treat absence as "no info".
+    """
+    try:
+        import managed_installs
+    except Exception:
+        return {}
+    try:
+        active = managed_installs.get_active_items() or []
+    except Exception:
+        return {}
+
+    out: dict = {}
+    for it in active:
+        if it.get('type') != 'lxc':
+            continue
+        vmid = it.get('_vmid') or it.get('id', '').removeprefix('lxc:')
+        if not vmid:
+            continue
+        update = it.get('update_check') or {}
+        out[str(vmid)] = {
+            'available': bool(update.get('available')),
+            'count': int(update.get('_count') or 0),
+            'security_count': int(update.get('_security_count') or 0),
+            'last_check': update.get('last_check'),
+            'latest': update.get('latest'),
+            'error': update.get('error'),
+            # Cap packages list shipped to UI — modal uses first 30 max
+            'packages': (update.get('_packages') or [])[:30],
+        }
+    return out
+
+
 def get_proxmox_vms():
     """Get Proxmox VM and LXC information (requires pvesh command) - only from local node"""
     try:
         all_vms = []
+        lxc_updates_map = _get_lxc_update_status_map()
 
         try:
             # local_node = socket.gethostname()
@@ -4694,11 +4756,12 @@ def get_proxmox_vms():
                         # print(f"[v0] Skipping VM {resource.get('vmid')} from remote node: {node}")
                         continue
 
+                    vm_type = 'lxc' if resource.get('type') == 'lxc' else 'qemu'
                     vm_data = {
                         'vmid': resource.get('vmid'),
                         'name': resource.get('name', f"VM-{resource.get('vmid')}"),
                         'status': resource.get('status', 'unknown'),
-                        'type': 'lxc' if resource.get('type') == 'lxc' else 'qemu',
+                        'type': vm_type,
                         'cpu': resource.get('cpu', 0),
                         'mem': resource.get('mem', 0),
                         'maxmem': resource.get('maxmem', 0),
@@ -4710,6 +4773,14 @@ def get_proxmox_vms():
                         'diskread': resource.get('diskread', 0),
                         'diskwrite': resource.get('diskwrite', 0)
                     }
+                    # Decorate LXC rows with the apt update status if the
+                    # managed_installs registry has it. Absent key means
+                    # either the user hasn't enabled the feature or the
+                    # CT isn't running / isn't Debian/Ubuntu.
+                    if vm_type == 'lxc':
+                        upd = lxc_updates_map.get(str(resource.get('vmid')))
+                        if upd is not None:
+                            vm_data['update_check'] = upd
                     all_vms.append(vm_data)
 
                 return all_vms
@@ -11035,9 +11106,53 @@ def api_vm_control(vmid):
                     'message': f'Successfully executed {action} on {vm_info.get("name")}'
                 })
             else:
+                # `pvesh` failed → fire the matching vm_fail / ct_fail
+                # notification so the user gets paged on their channels
+                # too, not just an in-dashboard alert. Previously this
+                # path silently returned a 500 to the browser and lost
+                # the event entirely (reported on .1.10: tried to start
+                # VM 106 while log2ram tmpfs was full → 500 in the UI
+                # but no Telegram message). The stderr is the most
+                # useful single line we have — `pvesh` reliably prints
+                # the underlying daemon failure there (e.g.
+                # "start failed: command '/usr/bin/kvm …' failed with
+                # exit code 1: no space left on device").
+                err_text = (control_result.stderr or '').strip() \
+                    or (control_result.stdout or '').strip() \
+                    or f'{action} returned exit code {control_result.returncode}'
+                # Truncate runaway stderr (some pvesh failures dump
+                # multi-KB tracebacks) — keep the notification readable.
+                if len(err_text) > 500:
+                    err_text = err_text[:500] + ' …'
+
+                try:
+                    from notification_manager import notification_manager as _nm
+                    import socket as _sock
+                    _host = _sock.gethostname()
+                    event_type = 'ct_fail' if vm_type == 'lxc' else 'vm_fail'
+                    _nm.emit_event(
+                        event_type=event_type,
+                        severity='CRITICAL',
+                        data={
+                            'hostname': _host,
+                            'vmid': str(vmid),
+                            'vmname': vm_info.get('name') or f'{vm_type}-{vmid}',
+                            'reason': f'{action} failed: {err_text}',
+                            'action': action,
+                        },
+                        source='dashboard',
+                        entity='vm',
+                        entity_id=str(vmid),
+                    )
+                except Exception as _emit_err:
+                    print(f"[api_vm_control] failed to emit {vm_type}_fail "
+                          f"notification: {type(_emit_err).__name__}: {_emit_err}")
+
                 return jsonify({
                     'success': False,
-                    'error': control_result.stderr
+                    'vmid': vmid,
+                    'action': action,
+                    'error': err_text,
                 }), 500
         else:
             return jsonify({'error': 'Failed to get VM details'}), 500

AppImage/scripts/health_persistence.py

@@ -92,7 +92,15 @@ class HealthPersistence:
         self.data_dir.mkdir(parents=True, exist_ok=True)
         
         self.db_path = self.data_dir / 'health_monitor.db'
-        self._db_lock = threading.Lock()
+        # Reentrant lock: `record_disk_observation` acquires this and then
+        # calls `register_disk` which acquires it again on the same thread.
+        # With a plain `threading.Lock` that second acquire deadlocks and the
+        # caller hangs forever — visible symptom on RimegraVE (Pedro Rico
+        # 19/05): no disk_observation update since the day a thread first
+        # walked that path. `RLock` allows re-entry from the same thread
+        # while still serialising cross-thread writes, which is what the
+        # serialisation rationale (race-free UPSERT dedup) actually wants.
+        self._db_lock = threading.RLock()
         self._init_database()
     
     def _get_conn(self) -> sqlite3.Connection:
@@ -229,6 +237,29 @@ class HealthPersistence:
             'ON digest_pending(channel, ts)'
         )
 
+        # Sibling table for events buffered DURING Quiet Hours. Same
+        # shape as digest_pending so the existing summary renderer can
+        # be reused. Kept separate because the lifecycle is different:
+        # digest_pending flushes once per day at digest_time, while
+        # quiet_pending flushes once per Quiet Hours close (an arbitrary
+        # time that depends on the user's window settings).
+        cursor.execute('''
+            CREATE TABLE IF NOT EXISTS quiet_pending (
+                id INTEGER PRIMARY KEY AUTOINCREMENT,
+                channel TEXT NOT NULL,
+                event_type TEXT NOT NULL,
+                event_group TEXT NOT NULL,
+                severity TEXT NOT NULL,
+                ts INTEGER NOT NULL,
+                title TEXT NOT NULL,
+                body TEXT NOT NULL
+            )
+        ''')
+        cursor.execute(
+            'CREATE INDEX IF NOT EXISTS idx_quiet_pending_channel '
+            'ON quiet_pending(channel, ts)'
+        )
+        
         # Migration: add missing columns to errors table for existing DBs
         cursor.execute("PRAGMA table_info(errors)")
         columns = [col[1] for col in cursor.fetchall()]
@@ -2289,11 +2320,15 @@ class HealthPersistence:
 
                 # Upsert observation: if same (disk, type, signature), bump count + update last timestamp.
                 # IMPORTANT: Do NOT reset dismissed — if the user dismissed this observation,
-                # re-detecting the same journal entry must not un-dismiss it. Also do not
+                # re-detecting the same journal entry must not un-dismiss it. BUT we DO
-                # increment the occurrence_count on dismissed rows (audit Tier 5 — once
+                # keep counting + updating last_occurrence even when dismissed, because the
-                # the user has dismissed, we don't want the counter to keep growing for
+                # responsible-monitoring contract is: every error counts toward the
-                # journal events that no longer interest them; this also stops the badge
+                # accumulated total shown in the disk modal ("324 connection errors"),
-                # from drifting upward for dismissed conditions).
+                # even errors of the same signature the user already saw once. Dismissed
+                # only mutes notifications, NOT the per-disk error history surfaced in the
+                # UI. Reverting the earlier "WHERE dismissed=0" gate that froze the
+                # counter and last_occurrence for /dev/sdh on 2026-05-09, leaving 10
+                # silent days of unreported ATA errors (Pedro Rico, 19/05).
                 cursor.execute(f'''
                     INSERT INTO disk_observations
                         (disk_registry_id, {type_col}, error_signature, {first_col},
@@ -2303,7 +2338,6 @@ class HealthPersistence:
                         {last_col} = excluded.{last_col},
                         occurrence_count = occurrence_count + 1,
                         severity = CASE WHEN excluded.severity = 'critical' THEN 'critical' ELSE severity END
-                    WHERE dismissed = 0
                 ''', (disk_id, error_type, error_signature, now, now, raw_message, severity))
 
                 conn.commit()

AppImage/scripts/lxc_mount_points.py

@@ -274,6 +274,12 @@ def _df_via_host_pid(host_pid: str, ct_target: str) -> dict[str, Optional[int]]:
     numbers reflect the whole storage pool instead of the per-subvol
     quota — without this the UI showed 851 GB total for a 150 GB ZFS
     subvol because pvesm reports the rpool's free space.
+
+    Note: this path does NOT measure NFS/CIFS mounts that were set up
+    from INSIDE the CT (`mount -t nfs` / `/etc/fstab` inside the
+    container). Those live in the CT's own mount namespace and aren't
+    visible to the host's `df` even through `/proc/<pid>/root`. Use
+    `_df_via_pct_exec` for ad-hoc mounts.
     """
     empty = {"total_bytes": None, "used_bytes": None, "available_bytes": None}
     if not host_pid or not ct_target:
@@ -301,6 +307,44 @@ def _df_via_host_pid(host_pid: str, ct_target: str) -> dict[str, Optional[int]]:
         return empty
 
 
+def _df_via_pct_exec(vmid: str, ct_target: str,
+                     timeout: int = 6) -> dict[str, Optional[int]]:
+    """``df`` a path from INSIDE the CT via ``pct exec``. Needed for
+    ad-hoc NFS/CIFS mounts that live in the CT's own mount namespace
+    and aren't visible from the host (so `_df_via_host_pid` returns
+    empty for them).
+
+    Heavier than the host-side df (full `pct exec` round-trip ~1-3s),
+    so we only use it for ad-hoc mounts. The 6s timeout is generous
+    enough for NFS over slow links but won't drag the request past
+    the proxy timeout.
+    """
+    empty = {"total_bytes": None, "used_bytes": None, "available_bytes": None}
+    if not vmid or not ct_target:
+        return empty
+    try:
+        proc = subprocess.run(
+            [_PCT, "exec", vmid, "--", "df", "-B1",
+             "--output=size,used,avail", ct_target],
+            capture_output=True, text=True, timeout=timeout,
+        )
+        if proc.returncode != 0:
+            return empty
+        lines = [ln for ln in proc.stdout.strip().splitlines() if ln.strip()]
+        if len(lines) < 2:
+            return empty
+        parts = lines[-1].split()
+        if len(parts) < 3:
+            return empty
+        return {
+            "total_bytes": int(parts[0]),
+            "used_bytes": int(parts[1]),
+            "available_bytes": int(parts[2]),
+        }
+    except (subprocess.TimeoutExpired, OSError, ValueError):
+        return empty
+
+
 def _capacity_for(source: str, classification: dict[str, Any],
                   pve_storages: dict[str, dict[str, Any]],
                   config_options: Optional[dict[str, Any]] = None,
@@ -606,14 +650,29 @@ def get_lxc_mount_points(vmid: str) -> dict[str, Any]:
         ]
         # Same parallelisation as the configured-mp loop: stat'ing
         # stale NFS exports serially can dominate the request and
-        # push it past the proxy timeout.
+        # push it past the proxy timeout. Capacity (`df`) is fetched
+        # in the SAME pool so the UI can render the usage bar for
+        # ad-hoc NFS/CIFS mounts too — null capacity was a regression
+        # spotted on CT 103 /mnt/Media. Skip df when stat already
+        # showed the mount as unreachable, otherwise the df subprocess
+        # blocks on the same broken export.
         if ad_hoc_candidates:
             with ThreadPoolExecutor(max_workers=max_workers) as pool:
-                healths = list(pool.map(
+                def _gather_adhoc(rt):
-                    lambda rt: _stat_via_host(host_pid, rt["rt_target"]),
+                    h = _stat_via_host(host_pid, rt["rt_target"])
-                    ad_hoc_candidates,
+                    if h.get("reachable"):
-                ))
+                        # NFS/CIFS mounts done inside the CT live in the
-            for rt, health in zip(ad_hoc_candidates, healths):
+                        # container's own mount namespace and aren't
+                        # visible to `df` from the host even via
+                        # /proc/<pid>/root — use `pct exec df` instead.
+                        cap = _df_via_pct_exec(vmid, rt["rt_target"])
+                    else:
+                        cap = {"total_bytes": None, "used_bytes": None,
+                               "available_bytes": None}
+                    return rt, h, cap
+
+                results = list(pool.map(_gather_adhoc, ad_hoc_candidates))
+            for rt, health, cap in results:
                 ad_hoc.append({
                     "mp_index": "",
                     "source": rt["rt_source"],
@@ -624,9 +683,9 @@ def get_lxc_mount_points(vmid: str) -> dict[str, Any]:
                     "origin_label": rt["rt_source"],
                     "config_options": {},
                     "config_flags": [],
-                    "total_bytes": None,
+                    "total_bytes": cap["total_bytes"],
-                    "used_bytes": None,
+                    "used_bytes": cap["used_bytes"],
-                    "available_bytes": None,
+                    "available_bytes": cap["available_bytes"],
                     "runtime_mounted": True,
                     "runtime_source": rt["rt_source"],
                     "runtime_fstype": rt["rt_fstype"],

AppImage/scripts/managed_installs.py

@@ -189,12 +189,169 @@ def _detect_oci_apps() -> list[dict]:
     return out
 
 
+# ── LXC containers (Phase 1: apt-based update detection) ────────────
+#
+# Each running Debian/Ubuntu CT becomes a registry entry of type "lxc".
+# Detection is opt-in: gated on the `lxc_updates_available` notification
+# being enabled somewhere, so the heavy `pct exec` work doesn't run on
+# hosts where the user hasn't asked for this.
+#
+# Phase 2 hook: once helper-scripts metadata is integrated, entries can
+# carry `_helper_script_app` so the checker swaps generic apt counting
+# for app-specific upstream-release tracking (Vaultwarden, Jellyfin,
+# etc.). For now every LXC uses the generic apt path.
+
+_PCT_BIN = "/usr/sbin/pct"
+_LXC_EXEC_TIMEOUT_SEC = 10
+_LXC_OS_PROBE_TIMEOUT_SEC = 5
+
+
+def _lxc_updates_notification_enabled() -> bool:
+    """Return True if the user has enabled `lxc_updates_available` on
+    at least one configured channel. Used to gate the heavy detection
+    + checker work — when disabled we don't touch any CT at all.
+    """
+    try:
+        import notification_manager as _nm_mod
+        nm = _nm_mod.notification_manager
+        return bool(nm.is_event_enabled("lxc_updates_available"))
+    except Exception:
+        return False
+
+
+def _list_pve_lxcs() -> list[dict]:
+    """Return basic info per LXC on this node via ``pct list``. Each
+    item is ``{vmid, status, name}``. Empty list on any failure — never
+    raises so the detector caller can continue.
+    """
+    try:
+        r = subprocess.run(
+            [_PCT_BIN, "list"],
+            capture_output=True, text=True, timeout=5,
+        )
+    except (subprocess.TimeoutExpired, FileNotFoundError, OSError):
+        return []
+    if r.returncode != 0:
+        return []
+
+    out: list[dict] = []
+    for line in r.stdout.splitlines()[1:]:  # skip header row
+        # `pct list` columns: VMID  Status  Lock  Name
+        # `Lock` is empty most of the time, so split max 4 ways
+        parts = line.split(None, 3)
+        if len(parts) < 2:
+            continue
+        vmid = parts[0]
+        status = parts[1]
+        # Name is the last column; in unlocked rows the 3rd col may
+        # be the name itself if Lock was omitted by the formatter.
+        name = parts[-1] if len(parts) >= 3 else ""
+        if not vmid.isdigit():
+            continue
+        out.append({"vmid": vmid, "status": status, "name": name})
+    return out
+
+
+_SUPPORTED_OS_FAMILIES = ("debian", "ubuntu", "alpine")
+
+
+def _probe_lxc_os(vmid: str) -> Optional[str]:
+    """Return a normalized family identifier (``debian`` / ``ubuntu`` /
+    ``alpine``) by reading ``/etc/os-release`` inside the running CT.
+    Returns None for distributions whose package manager we don't yet
+    speak — those CTs are skipped in detection so the framework
+    doesn't keep retrying a checker we can't run.
+
+    Cached per CT in the registry — re-probed only when the entry has
+    no ``_os_family`` yet, since the OS rarely changes for the life of
+    a CT.
+    """
+    try:
+        r = subprocess.run(
+            [_PCT_BIN, "exec", vmid, "--", "cat", "/etc/os-release"],
+            capture_output=True, text=True,
+            timeout=_LXC_OS_PROBE_TIMEOUT_SEC,
+        )
+    except (subprocess.TimeoutExpired, FileNotFoundError, OSError):
+        return None
+    if r.returncode != 0:
+        return None
+    text = r.stdout.lower()
+    if "id=ubuntu" in text:
+        return "ubuntu"
+    if "id=debian" in text or "id_like=debian" in text:
+        return "debian"
+    if "id=alpine" in text:
+        return "alpine"
+    # Future Phase 1.5: CentOS/Rocky/Alma (dnf check-update), Arch
+    # (checkupdates), openSUSE (zypper list-updates). Each needs a
+    # parser similar to apt/apk — skip silently for now.
+    return None
+
+
+def _detect_lxc_containers() -> list[dict]:
+    """Enumerate running Debian/Ubuntu CTs as registry entries.
+
+    OS detection is cached in the registry entry (`_os_family`), so the
+    expensive ``pct exec cat /etc/os-release`` only runs the first time
+    a CT is seen. CT reinstalls with a different OS will keep the old
+    family cached until the user resets the registry — acceptable
+    trade-off vs paying the probe cost every 24h cycle.
+    """
+    if not _lxc_updates_notification_enabled():
+        return []
+
+    # Read existing registry so we can preserve cached `_os_family`.
+    # No lock needed here — we only inspect; the framework holds the
+    # write lock when it merges back our results in detect_and_register.
+    try:
+        existing = _read_registry().get("items", [])
+    except Exception:
+        existing = []
+    existing_by_id = {
+        it.get("id"): it for it in existing
+        if isinstance(it, dict) and it.get("type") == "lxc"
+    }
+
+    cts = _list_pve_lxcs()
+    out: list[dict] = []
+    for ct in cts:
+        if ct["status"] != "running":
+            continue
+        vmid = ct["vmid"]
+        cid = f"lxc:{vmid}"
+        prior = existing_by_id.get(cid) or {}
+        os_family = prior.get("_os_family")
+        if not os_family:
+            os_family = _probe_lxc_os(vmid)
+            if os_family not in _SUPPORTED_OS_FAMILIES:
+                # Distribution we don't yet have a package-manager
+                # parser for. Skip silently. The framework marks any
+                # existing entry as removed_at if it stops appearing
+                # in the detector output.
+                continue
+        out.append({
+            "id": cid,
+            "type": "lxc",
+            "name": ct.get("name") or f"CT-{vmid}",
+            "current_version": None,  # apt has no single version
+            "menu_label": None,        # user upgrades inside the CT
+            "menu_script": None,
+            "_vmid": vmid,
+            "_os_family": os_family,
+            # Phase 2 hook: populate `_helper_script_app` here once we
+            # learn how to read the community-scripts marker.
+        })
+    return out
+
+
 # Detectors registered here. Each returns either a single entry dict
 # or a list (for sources that yield multiple items, like OCI). The
 # framework normalises both shapes.
 _DETECTORS: list[Callable[[], Any]] = [
     _detect_nvidia_xfree86,
     _detect_oci_apps,
+    _detect_lxc_containers,
 ]
 
 
@@ -514,9 +671,173 @@ def _check_nvidia_xfree86(entry: dict) -> dict:
     }
 
 
+def _parse_apt_list_upgradable(text: str) -> list[dict]:
+    """Parse the output of ``apt list --upgradable`` into structured rows.
+
+    Each upgradable line looks like::
+
+        package/release version arch [upgradable from: oldversion]
+
+    Returns a list of ``{name, current, latest, security}``. Lines that
+    can't be parsed are skipped; the header ``Listing...`` is ignored
+    because it lacks the ``[upgradable`` marker.
+
+    "security" flag is detected from the release/suite name (e.g.
+    ``bookworm-security``, ``jammy-security``). Some derivatives don't
+    use that naming and will report security=False even when patches
+    are present — acceptable for Phase 1, refined later if needed.
+    """
+    rows: list[dict] = []
+    for line in text.splitlines():
+        line = line.strip()
+        if not line or "[upgradable" not in line or "/" not in line:
+            continue
+        try:
+            head, _, tail = line.partition(" ")
+            name, _, release = head.partition("/")
+            tail_parts = tail.split()
+            if not tail_parts:
+                continue
+            new_ver = tail_parts[0]
+            old_ver = ""
+            if "from:" in line:
+                old_ver = line.split("from:", 1)[1].strip().rstrip("]").strip()
+            release_lower = release.lower()
+            is_security = "-security" in release_lower or "/security" in release_lower
+            rows.append({
+                "name": name,
+                "current": old_ver,
+                "latest": new_ver,
+                "security": is_security,
+            })
+        except Exception:
+            continue
+    return rows
+
+
+def _parse_apk_list_upgradable(text: str) -> list[dict]:
+    """Parse the output of ``apk list -u`` into structured rows.
+
+    Lines look like::
+
+        busybox-1.36.1-r29 x86_64 {busybox} (GPL-2.0-only) [upgradable from: busybox-1.36.1-r28]
+
+    apk smashes name + version into the leading token, so reliable
+    name/version splitting requires walking from the right (versions
+    end in ``-r<num>``). For the badge + notification we only need a
+    count and a representative sample, so we keep the parser tolerant
+    and surface the raw token as the package "name". Alpine's main
+    repos don't expose a separate "security" suite via apk metadata,
+    so we mark every row as ``security=False`` — security==0 always.
+    """
+    rows: list[dict] = []
+    for line in text.splitlines():
+        line = line.strip()
+        if not line or "[upgradable" not in line:
+            continue
+        try:
+            first_tok = line.split(" ", 1)[0]
+            old = ""
+            if "from:" in line:
+                old = line.split("from:", 1)[1].strip().rstrip("]").strip()
+            rows.append({
+                "name": first_tok,
+                "current": old,
+                "latest": first_tok,
+                "security": False,
+            })
+        except Exception:
+            continue
+    return rows
+
+
+def _run_pct_pkg_listing(vmid: str, cmd: str) -> tuple[bool, str, str]:
+    """Run a package-listing command inside ``vmid`` via ``pct exec``.
+    Returns ``(ok, stdout, error_message)``. Centralises the timeout
+    and stderr handling so apt/apk callers stay symmetric.
+    """
+    try:
+        r = subprocess.run(
+            [_PCT_BIN, "exec", vmid, "--", "sh", "-c", cmd],
+            capture_output=True, text=True,
+            timeout=_LXC_EXEC_TIMEOUT_SEC,
+        )
+    except subprocess.TimeoutExpired:
+        return False, "", f"{cmd.split()[0]} listing timed out"
+    except (FileNotFoundError, OSError) as e:
+        return False, "", str(e)
+    if r.returncode != 0:
+        return False, "", (r.stderr or "package listing failed").strip()[:200]
+    return True, r.stdout, ""
+
+
+def _check_lxc_updates(entry: dict) -> dict:
+    """Inspect pending package updates inside the LXC and report them.
+
+    Dispatches to the right package-manager parser based on the cached
+    ``_os_family``. Uses the CT's existing metadata cache — never runs
+    ``apt update`` / ``apk update`` from outside, so the user's own
+    update cadence (unattended-upgrades, cron) is preserved.
+
+    The dedup fingerprint (``latest``) combines count, security count
+    and the sorted top package names so a stable set of pending
+    updates doesn't re-notify daily, while a meaningfully different
+    update set does.
+    """
+    vmid = entry.get("_vmid")
+    family = (entry.get("_os_family") or "").lower()
+    if not vmid:
+        return {
+            "available": False, "latest": None,
+            "last_check": _now_iso(), "error": "no vmid in entry",
+        }
+
+    if family in ("debian", "ubuntu"):
+        ok, stdout, err = _run_pct_pkg_listing(
+            vmid, "apt list --upgradable 2>/dev/null"
+        )
+        packages = _parse_apt_list_upgradable(stdout) if ok else []
+    elif family == "alpine":
+        ok, stdout, err = _run_pct_pkg_listing(
+            vmid, "apk list -u 2>/dev/null"
+        )
+        packages = _parse_apk_list_upgradable(stdout) if ok else []
+    else:
+        return {
+            "available": False, "latest": None,
+            "last_check": _now_iso(),
+            "error": f"unsupported family: {family}",
+        }
+
+    if not ok:
+        return {
+            "available": False, "latest": None,
+            "last_check": _now_iso(), "error": err,
+        }
+
+    count = len(packages)
+    sec_count = sum(1 for p in packages if p.get("security"))
+    available = count > 0
+    latest_fp = None
+    if available:
+        top_names = ",".join(sorted(p["name"] for p in packages)[:5])
+        latest_fp = f"{count}:{sec_count}:{top_names}"
+
+    return {
+        "available": available,
+        "latest": latest_fp,
+        "last_check": _now_iso(),
+        "error": None,
+        "_count": count,
+        "_security_count": sec_count,
+        "_packages": packages[:30],  # cap to keep the registry compact
+    }
+
+
 _CHECKERS: dict[str, Callable[[dict], dict]] = {
     "oci_app": _check_oci_app,
     "nvidia_xfree86": _check_nvidia_xfree86,
+    "lxc": _check_lxc_updates,
 }
 
 
@@ -562,8 +883,14 @@ def check_for_updates(force: bool = False) -> list[dict]:
             }
             if result.get("current") and not it.get("current_version"):
                 it["current_version"] = result["current"]
+            # Per-checker extras carried through into the persisted
+            # `update_check` blob. Add new keys here when a future
+            # checker needs to surface fields beyond available/latest.
+            # `_count` + `_security_count` were missing originally, so
+            # the LXC checker's counts dropped on the floor and the
+            # frontend badge couldn't render.
             for extra_key in ("_packages", "_upgrade_kind", "_kernel",
-                              "_kernel_note"):
+                              "_kernel_note", "_count", "_security_count"):
                 if extra_key in result:
                     it["update_check"][extra_key] = result[extra_key]
 

AppImage/scripts/notification_events.py

@@ -327,14 +327,27 @@ def is_vzdump_active_on_host() -> bool:
     try:
         with open(_VZDUMP_ACTIVE_FILE, 'r') as f:
             for line in f:
-                # UPID format: UPID:node:pid:pstart:starttime:type:id:user:
+                # tasks/active row layout (whitespace separated):
+                #   "<UPID> 1"                                ← running
+                #   "<UPID> 1 <endtime_hex> <STATUS>"         ← finished
+                # PVE leaves finished rows lingering for hours
+                # sometimes — without the field-count check below the
+                # PID-recycling case fires a false positive (an
+                # unrelated process inherited the old vzdump's PID
+                # and `os.kill(pid, 0)` succeeds).
                 if ':vzdump:' not in line:
                     continue
-                parts = line.strip().split(':')
+                fields = line.split()
-                if len(parts) < 3:
+                if not fields:
+                    continue
+                # >2 fields means endtime + status are written → terminated.
+                if len(fields) > 2:
+                    continue
+                upid_parts = fields[0].split(':')
+                if len(upid_parts) < 3:
                     continue
                 try:
-                    pid = int(parts[2], 16)  # PID in UPID is hex
+                    pid = int(upid_parts[2], 16)  # PID in UPID is hex
                     os.kill(pid, 0)
                     found = True
                     break
@@ -1033,21 +1046,28 @@ class JournalWatcher:
             else:
                 resolved = re.sub(r'\d+$', '', raw_device) if raw_device.startswith('sd') else raw_device
             
-            # ── Gate 1: SMART must confirm disk failure ──
+            # ── ALWAYS persist the observation, regardless of SMART ──
-            # If the disk is healthy (PASSED) or we can't verify
+            # The disk_observation_contract is explicit (memory note
-            # (UNKNOWN / unresolvable ATA port), do NOT notify.
+            # disk-observation-contract): every kernel-surfaced disk
+            # error must be recorded in disk_observations *even when
+            # SMART reports PASSED*. Silent errors on a "healthy" disk
+            # are exactly the early-warning signal the modal histogram
+            # exists to surface ("324 connection errors on this disk").
+            # Previously this line lived AFTER a `return` gate keyed on
+            # smart_health != 'FAILED', so the 3162 ata8 errors on
+            # .1.10 (PASSED SMART) all dropped on the floor instead of
+            # accumulating in the per-disk audit history.
+            self._record_disk_io_observation(resolved, msg)
+
+            # ── Gate 1: only NOTIFY when SMART reports FAILED ──
+            # Observation is already saved above. We avoid spamming a
+            # CRITICAL notification for transient ATA/SCSI noise on
+            # otherwise-healthy disks — the modal histogram surfaces
+            # those without paging the user at 3 AM.
             smart_health = self._quick_smart_health(resolved)
             if smart_health != 'FAILED':
                 return
 
-            # ── Persist observation (before the cooldown gate) ──
-            # The 24h cooldown below only suppresses RE-notification; the
-            # per-disk observations history must reflect every genuine
-            # detection. The DB UPSERT dedups same-signature events via
-            # occurrence_count, so calling this on every match is safe.
-            # Aligns with the parallel path in HealthMonitor._check_disks_optimized.
-            self._record_disk_io_observation(resolved, msg)
-
             # ── Gate 2: 24-hour dedup per device ──
             # Check both in-memory cache AND the DB (user dismiss clears DB cooldowns).
             # If user dismissed the error, _clear_disk_io_cooldown() removed the DB
@@ -1814,10 +1834,29 @@ class TaskWatcher:
                     line = line.strip()
                     if not line:
                         continue
-                    upid = line.split()[0] if line.split() else line
+                    parts = line.split()
+                    if not parts:
+                        continue
+                    upid = parts[0]
                     current_upids.add(upid)
 
-                    if ':vzdump:' in upid:
+                    if ':vzdump:' not in upid:
+                        continue
+
+                    # PVE writes each line in tasks/active as:
+                    #   "<UPID> 1"                                    ← task still running
+                    #   "<UPID> 1 <endtime_hex> <STATUS>"             ← task already finished
+                    # PVE doesn't always prune finished rows from this
+                    # file (observed on RimegraVE 19/05: 25 OK/error
+                    # entries lingering for hours after job end). Just
+                    # matching ':vzdump:' kept `_vzdump_running_since`
+                    # permanently fresh, which then made
+                    # `_is_vzdump_active()` return True forever and
+                    # silenced every vm_start / vm_stop / vm_shutdown
+                    # via the _BACKUP_NOISE filter. Only treat the row
+                    # as a live vzdump when no end-time / status has
+                    # been written yet (≤ 2 fields: UPID + version).
+                    if len(parts) <= 2:
                         found_vzdump = True
 
             # Keep _vzdump_running_since fresh as long as vzdump is in active
@@ -2175,6 +2214,16 @@ class PollingCollector:
         # has an update".
         self._last_managed_check = 0
         self._notified_managed_updates: dict[str, str] = {}
+        # LXC notifications are grouped — one event per polling cycle
+        # covering every running Debian/Ubuntu CT with pending apt
+        # updates. The fingerprint encodes the per-CT state so a stable
+        # batch doesn't re-notify while a meaningful change does.
+        self._notified_lxc_batch: str | None = None
+        # Track previous state of the LXC-updates notification toggle
+        # so a user enabling it post-startup bypasses the 24h gate
+        # ONCE — the next polling cycle runs a fresh detection without
+        # waiting up to a day. Cleared after the forced run completes.
+        self._lxc_was_enabled: bool = False
         # Track notified ProxMenux versions to avoid duplicates
         self._notified_proxmenux_version: str | None = None
         self._notified_proxmenux_beta_version: str | None = None
@@ -3101,7 +3150,24 @@ class PollingCollector:
         NVIDIA driver → ``nvidia_driver_update_available``, etc.).
         """
         now = time.time()
-        if now - self._last_managed_check < self.UPDATE_CHECK_INTERVAL:
+
+        # Detect OFF→ON transition of the LXC update toggle. Without
+        # this, the first polling cycle after service start always sets
+        # the 24h gate — so a user who enables the toggle later (which
+        # is the normal flow, since the toggle defaults to OFF) would
+        # have to wait up to 24h or restart the service before the
+        # detector ran. A one-shot bypass on the transition fixes that
+        # without weakening the 24h cadence in steady state.
+        try:
+            import managed_installs as _mi
+            lxc_enabled_now = _mi._lxc_updates_notification_enabled()
+        except Exception:
+            lxc_enabled_now = False
+        lxc_just_enabled = lxc_enabled_now and not self._lxc_was_enabled
+        self._lxc_was_enabled = lxc_enabled_now
+
+        if (not lxc_just_enabled
+                and now - self._last_managed_check < self.UPDATE_CHECK_INTERVAL):
             return
         self._last_managed_check = now
 
@@ -3117,8 +3183,15 @@ class PollingCollector:
             print(f"[PollingCollector] managed_installs update run failed: {e}")
             return
 
+        # Split LXC updates out of the per-item event stream — they get
+        # one grouped notification per cycle instead of one per CT, to
+        # avoid spamming the user when 15 CTs have pending updates the
+        # same day. Non-LXC types keep their existing per-item flow.
+        lxc_updates = [u for u in updates if u.get('type') == 'lxc']
+        other_updates = [u for u in updates if u.get('type') != 'lxc']
+
         seen_ids: set[str] = set()
-        for item in updates:
+        for item in other_updates:
             item_id = item.get('id', '')
             if not item_id:
                 continue
@@ -3143,6 +3216,17 @@ class PollingCollector:
                 entity_id=f'managed_{item_id}',
             ))
 
+        # LXC: emit one grouped event with all CTs that have pending
+        # updates. The batch fingerprint is recomputed every cycle and
+        # compared with the last notified one — if the set of CTs or
+        # their per-CT fingerprints changed, we notify again.
+        if lxc_updates:
+            self._emit_lxc_updates_batch(lxc_updates)
+        else:
+            # Empty batch — clear the dedup so a fresh batch later fires
+            # a new notification even with the same CTs/versions.
+            self._notified_lxc_batch = None
+
         # Forget items that no longer have an update available. If
         # the user installs the update and then a later release lands,
         # the dedup state is already cleared so the next notification
@@ -3159,6 +3243,67 @@ class PollingCollector:
             if stale_id not in active_with_update:
                 self._notified_managed_updates.pop(stale_id, None)
 
+    def _emit_lxc_updates_batch(self, items: list[dict]) -> None:
+        """Build and queue a single ``lxc_updates_available`` event for
+        every running CT that currently has pending apt updates.
+
+        The batch fingerprint combines every CT's per-CT fingerprint
+        (count + security_count + top package names). A new CT entering
+        the set OR an existing CT changing its per-CT fingerprint
+        produces a new batch fingerprint, so the cooldown is broken and
+        the event fires. A truly stable batch is silenced via the
+        equality check below.
+        """
+        # Stable order so the fingerprint is deterministic
+        items_sorted = sorted(items, key=lambda x: x.get('id', ''))
+
+        ct_lines: list[str] = []
+        per_ct_fps: list[str] = []
+        total_packages = 0
+        total_security = 0
+
+        for idx, it in enumerate(items_sorted):
+            update = it.get('update_check', {}) or {}
+            count = int(update.get('_count') or 0)
+            sec_count = int(update.get('_security_count') or 0)
+            total_packages += count
+            total_security += sec_count
+
+            vmid = it.get('_vmid') or it.get('id', '').removeprefix('lxc:') or '?'
+            name = it.get('name') or f'CT {vmid}'
+            # Each CT renders across two/three lines so the count and the
+            # security count don't compete with the CT label on the same
+            # row — much easier to read in Telegram/Discord at a glance.
+            # A blank line before every CT except the first separates
+            # entries cleanly without a trailing blank at the end.
+            if idx > 0:
+                ct_lines.append("")
+            ct_lines.append(f"🏷️ CT {vmid} ({name}):")
+            ct_lines.append(f"    📦 {count} update(s)")
+            if sec_count:
+                ct_lines.append(f"    🔒 {sec_count} security")
+            per_ct_fps.append(f"{it.get('id', '')}={update.get('latest', '')}")
+
+        batch_fingerprint = '|'.join(per_ct_fps)
+        if self._notified_lxc_batch == batch_fingerprint:
+            return  # same batch as last time — silent
+        self._notified_lxc_batch = batch_fingerprint
+
+        data = {
+            'hostname': self._hostname,
+            'count': len(items_sorted),
+            'total_packages': total_packages,
+            'security_count': total_security,
+            'ct_list': '\n'.join(ct_lines),
+        }
+        self._queue.put(NotificationEvent(
+            'lxc_updates_available', 'INFO', data,
+            source='polling',
+            entity='node',
+            # Hash so different batches get distinct cooldown keys
+            entity_id=f'lxc_batch_{abs(hash(batch_fingerprint)) % 10**10}',
+        ))
+
     def _build_managed_install_event(self, item: dict) -> tuple[str, dict]:
         """Translate a registry item into a (event_type, template_data)
         pair. Per-type bodies live here so the registry stays

AppImage/scripts/notification_manager.py

@@ -973,6 +973,8 @@ class NotificationManager:
         cleanup_interval = 3600  # Cleanup cooldowns every hour
         flush_interval = 5       # Flush aggregation buckets every 5s
         digest_check_interval = 60  # Re-evaluate digest schedule every minute
+        last_quiet_check = 0.0
+        quiet_check_interval = 60   # Re-evaluate per-channel quiet window every minute
 
         while self._running:
             try:
@@ -990,6 +992,13 @@ class NotificationManager:
                 if now_mono - last_digest_check > digest_check_interval:
                     self._maybe_flush_digests()
                     last_digest_check = now_mono
+                # Quiet Hours close → flush buffered sub-CRITICAL events
+                # as a single grouped summary. Has to run even when the
+                # queue is idle, otherwise users who don't generate any
+                # events post-window would never see their summary.
+                if now_mono - last_quiet_check > quiet_check_interval:
+                    self._maybe_flush_quiet_hours()
+                    last_quiet_check = now_mono
                 continue
             
             try:
@@ -998,9 +1007,21 @@ class NotificationManager:
                 print(f"[NotificationManager] Dispatch error: {e}")
 
             # Also flush aggregation after each event
-            if time.monotonic() - last_flush > flush_interval:
+            now_mono = time.monotonic()
+            if now_mono - last_flush > flush_interval:
                 self._flush_aggregation()
-                last_flush = time.monotonic()
+                last_flush = now_mono
+            # Re-check digest schedule after each event too. The idle-only
+            # check above misses the daily flush window when the queue stays
+            # busy through the digest_time minute (rare but real: a burst of
+            # journal events arriving at the same minute as the target). The
+            # 23h guard inside _maybe_flush_digests keeps it idempotent.
+            if now_mono - last_digest_check > digest_check_interval:
+                self._maybe_flush_digests()
+                last_digest_check = now_mono
+            if now_mono - last_quiet_check > quiet_check_interval:
+                self._maybe_flush_quiet_hours()
+                last_quiet_check = now_mono
     
     def _flush_aggregation(self):
         """Flush expired aggregation buckets and dispatch summaries."""
@@ -1171,20 +1192,20 @@ class NotificationManager:
 
             # ── Per-channel quiet hours ──
             # The user marks a window (e.g. 22:00 → 06:00) during which only
-            # CRITICAL events reach this channel. Anything below CRITICAL is
+            # CRITICAL events reach this channel. Sub-CRITICAL events are
-            # dropped silently — not buffered, not retried — because the
+            # **buffered** to `quiet_pending` and flushed as a SINGLE grouped
-            # whole point is "don't wake me up at 3 AM unless the disk
+            # summary when the window closes — so the user doesn't get
-            # exploded". CRITICAL always wins. The window is configured
+            # paged at 3 AM but also doesn't lose 8h of activity overnight.
-            # per-channel; same channel can have different rules from
+            # CRITICAL always wins. The window is configured per-channel.
-            # another. See _in_quiet_hours() for boundary semantics.
+            # See _in_quiet_hours() for boundary semantics.
             # `_dispatch_to_channels` does NOT receive the NotificationEvent
             # object — only the rendered primitives. Using `event.X` here
-            # raised `NameError: name 'event' is not defined` for every
+            # raised `NameError` for every event passing through, silenced
-            # event passing through (silenced by the dispatch loop's broad
+            # by the dispatch loop's broad except → no notifications EVER
-            # except → no notifications EVER delivered after Quiet Hours +
+            # delivered after Quiet Hours + Daily Digest were merged.
-            # Daily Digest were merged). All community-reported "stopped
-            # receiving notifications after update" cases trace back here.
             if severity != 'CRITICAL' and self._in_quiet_hours(ch_name):
+                self._buffer_quiet_event(ch_name, event_type, event_group,
+                                          severity, title, body)
                 continue
 
             # ── Per-channel daily digest ──
@@ -1537,6 +1558,126 @@ class NotificationManager:
         )
         return '\n'.join(lines).rstrip() + '\n'
 
+    # ─── Quiet Hours buffer + flush ────────────────────────────
+    # Reused infrastructure: `quiet_pending` table (created in
+    # health_persistence) has the same shape as `digest_pending`, so
+    # `_compose_digest_body` renders the summary unchanged. What
+    # differs is the lifecycle — quiet_pending flushes when each
+    # channel's window CLOSES, not at a fixed daily time. We track
+    # that transition via `self._was_in_quiet_hours[ch_name]`.
+
+    def _buffer_quiet_event(self, ch_name: str, event_type: str,
+                            event_group: str, severity: str,
+                            title: str, body: str) -> None:
+        """Append a sub-CRITICAL event to the channel's quiet-hours
+        buffer in SQLite. Mirrors `_buffer_digest_event` — same shape,
+        different table.
+        """
+        try:
+            conn = sqlite3.connect(str(DB_PATH), timeout=10)
+            conn.execute('PRAGMA journal_mode=WAL')
+            conn.execute('PRAGMA busy_timeout=5000')
+            conn.execute(
+                'INSERT INTO quiet_pending '
+                '(channel, event_type, event_group, severity, ts, title, body) '
+                'VALUES (?, ?, ?, ?, ?, ?, ?)',
+                (ch_name, event_type, event_group, severity,
+                 int(time.time()), title, body),
+            )
+            conn.commit()
+            conn.close()
+        except Exception as e:
+            print(f"[NotificationManager] quiet_pending write failed: {e}")
+
+    def _maybe_flush_quiet_hours(self) -> None:
+        """Detect per-channel quiet-hours close (in→out transition) and
+        emit one summary notification with everything buffered during
+        the window. Called every ~60s from the dispatch loop.
+
+        State held in-memory: `self._was_in_quiet_hours[ch_name]`. On
+        first run after restart all channels start as "unknown" — we
+        seed with the current window status WITHOUT firing a summary,
+        so a Monitor restart in the middle of someone's quiet window
+        doesn't trigger a fake close-of-window flush.
+        """
+        if not hasattr(self, '_was_in_quiet_hours'):
+            self._was_in_quiet_hours = {}
+
+        for ch_name, channel in list(self._channels.items()):
+            currently_in = self._in_quiet_hours(ch_name)
+            previously_in = self._was_in_quiet_hours.get(ch_name)
+            self._was_in_quiet_hours[ch_name] = currently_in
+
+            # Seed run (no prior state) — don't fire anything.
+            if previously_in is None:
+                continue
+            # Still in the window → just buffer.
+            if currently_in:
+                continue
+            # Was in window, now out → close transition → flush.
+            if previously_in and not currently_in:
+                try:
+                    self._flush_quiet_for_channel(ch_name, channel)
+                except Exception as e:
+                    print(f"[NotificationManager] quiet flush failed for "
+                          f"{ch_name}: {e}")
+
+    def _flush_quiet_for_channel(self, ch_name: str, channel: Any) -> None:
+        """Send a single grouped summary of everything buffered for
+        `ch_name` during the just-closed quiet window, then drop the
+        buffer rows. Reuses `_compose_digest_body` for rendering since
+        the row shape is identical.
+        """
+        try:
+            conn = sqlite3.connect(str(DB_PATH), timeout=10)
+            conn.execute('PRAGMA journal_mode=WAL')
+            cursor = conn.cursor()
+            cursor.execute(
+                'SELECT id, event_type, event_group, ts, title, body '
+                'FROM quiet_pending WHERE channel = ? ORDER BY ts ASC',
+                (ch_name,),
+            )
+            rows = cursor.fetchall()
+            conn.close()
+        except Exception as e:
+            print(f"[NotificationManager] quiet read failed for {ch_name}: {e}")
+            return
+
+        if not rows:
+            return
+
+        host = _hostname(self._config)
+        summary_title = (
+            f"{host}: {len(rows)} events buffered during Quiet Hours"
+        )
+        summary_body = self._compose_digest_body(rows)
+
+        try:
+            channel.send(summary_title, summary_body, severity='INFO',
+                         data={'_quiet_hours_summary': True, '_count': len(rows)})
+        except Exception as e:
+            print(f"[NotificationManager] quiet send failed for "
+                  f"{ch_name}: {e}")
+            return
+
+        # Only drop the rows after a successful send so a transient
+        # transport failure (Telegram timeout, SMTP outage) doesn't
+        # lose the user's overnight context.
+        try:
+            ids = [r[0] for r in rows]
+            conn = sqlite3.connect(str(DB_PATH), timeout=10)
+            conn.execute('PRAGMA journal_mode=WAL')
+            placeholders = ','.join('?' * len(ids))
+            conn.execute(
+                f'DELETE FROM quiet_pending WHERE id IN ({placeholders})',
+                ids,
+            )
+            conn.commit()
+            conn.close()
+        except Exception as e:
+            print(f"[NotificationManager] quiet cleanup failed for "
+                  f"{ch_name}: {e}")
+
     def _passes_cooldown(self, event: NotificationEvent) -> bool:
         """Check if the event passes cooldown rules WITHOUT stamping.
 
@@ -2315,6 +2456,18 @@ class NotificationManager:
             ch_cfg: Dict[str, Any] = {
                 'enabled': self._config.get(f'{ch_type}.enabled', 'false') == 'true',
                 'rich_format': self._config.get(f'{ch_type}.rich_format', 'false') == 'true',
+                # Quiet Hours + Daily Digest live in the same per-channel
+                # namespace but weren't being projected back to the UI —
+                # the toggles round-tripped through POST but the GET only
+                # returned `enabled`/`rich_format` plus channel-specific
+                # config_keys, so after a reload the user saw the toggle
+                # off even though the DB had it on. Reported on .1.10
+                # along with the post-window delivery bug.
+                'quiet_enabled': self._config.get(f'{ch_type}.quiet_enabled', 'false') == 'true',
+                'quiet_start': self._config.get(f'{ch_type}.quiet_start', '22:00'),
+                'quiet_end': self._config.get(f'{ch_type}.quiet_end', '06:00'),
+                'digest_enabled': self._config.get(f'{ch_type}.digest_enabled', 'false') == 'true',
+                'digest_time': self._config.get(f'{ch_type}.digest_time', '09:00'),
             }
             for config_key in info['config_keys']:
                 full_key = f'{ch_type}.{config_key}'

AppImage/scripts/notification_templates.py

@@ -484,6 +484,23 @@ TEMPLATES = {
     },
     
     # ── VM / CT events ──
+    # Phase 1: apt-based update detection inside running Debian/Ubuntu
+    # LXCs. Grouped — one notification per cycle covers every CT with
+    # pending updates. Opt-in (default_enabled=False) because the check
+    # uses `pct exec` to inspect package state inside the user's CTs.
+    # Phase 2 (community-scripts metadata) will extend this without
+    # changing the event type.
+    'lxc_updates_available': {
+        'title': '{hostname}: {count} LXC(s) with package updates available',
+        'body': (
+            '📊 {count} LXC(s) with pending package updates '
+            '(📦 {total_packages} total, 🔒 {security_count} security):\n\n'
+            '{ct_list}'
+        ),
+        'label': 'LXC updates available (experimental)',
+        'group': 'vm_ct',
+        'default_enabled': False,
+    },
     'vm_start': {
         'title': '{hostname}: VM {vmname} ({vmid}) started',
         'body': 'Virtual machine {vmname} (ID: {vmid}) is now running.',
@@ -1109,8 +1126,8 @@ TEMPLATES = {
         'title': '{hostname}: {count} ProxMenux optimization update(s) available',
         'body': (
             '{count} optimization update(s) detected on this host.\n\n'
-            'Tools:\n{tool_list}\n\n'
+            '🛠️ Tools:\n{tool_list}\n\n'
-            'How to apply:\n'
+            '💡 How to apply:\n'
             '  • ProxMenux Monitor → Settings → ProxMenux Optimizations\n'
             '  • Or run the post-install menu (option 2) → "Apply available updates"'
         ),
@@ -1129,12 +1146,12 @@ TEMPLATES = {
     'secure_gateway_update_available': {
         'title': '{hostname}: {app_name} update available — v{latest_version}',
         'body': (
-            '{app_name} (managed by ProxMenux) has {package_count} package update(s) '
+            '{app_name} (managed by ProxMenux) has 📦 {package_count} package update(s) '
             'pending in its container.\n'
-            'Current Tailscale: v{current_version}  →  Latest: v{latest_version}\n\n'
+            '🔹 Current Tailscale: v{current_version}  →  🟢 Latest: v{latest_version}\n\n'
-            'Open ProxMenux Monitor > Settings > Secure Gateway and click '
+            '💡 Open ProxMenux Monitor > Settings > Secure Gateway and click '
             '"Update" to apply.\n\n'
-            'Packages:\n{package_list}'
+            '🗂️ Packages:\n{package_list}'
         ),
         'label': 'Secure Gateway update available',
         'group': 'updates',
@@ -1147,10 +1164,10 @@ TEMPLATES = {
         'title': '{hostname}: NVIDIA driver update available — v{latest_version}',
         'body': (
             'A newer NVIDIA driver compatible with kernel {kernel} is available.\n'
-            'Currently installed: v{current_version}\n'
+            '🔹 Currently installed: v{current_version}\n'
-            'Latest available:    v{latest_version}\n\n'
+            '🟢 Latest available:    v{latest_version}\n\n'
             '{upgrade_reason}\n\n'
-            'To reinstall:\n'
+            '💡 To reinstall:\n'
             '  • From the ProxMenux post-install menu: {menu_label}\n\n'
             'Reinstalling rebuilds the DKMS module against the running kernel and '
             'requires a reboot to load the new driver.'
@@ -1465,6 +1482,7 @@ CATEGORY_EMOJI = {
 # Event-specific title icons  (override category default when present)
 EVENT_EMOJI = {
     # VM / CT
+    'lxc_updates_available': '\U0001F4E6',     # \uD83D\uDCE6 package \u2014 pending CT updates
     'vm_start':             '\u25B6\uFE0F',    # play button
     'vm_start_warning':     '\u26A0\uFE0F',     # warning sign - started with warnings
     'vm_stop':              '\u23F9\uFE0F',     # stop button
@@ -1768,6 +1786,14 @@ Your job: translate alerts into {language} and enrich them with context when pro
 ═══ ABSOLUTE CONSTRAINTS (NO EXCEPTIONS) ═══
 - NO HALLUCINATIONS: Do not invent causes, solutions, or facts not present in the provided data
 - NO SPECULATION: If something is unclear, state what IS known, not what MIGHT be
+- NO FILLER LINES: Every output line must derive from the input message, the journal context,
+  or the known-error database. NEVER add generic statements like "Event detected during normal
+  operation", "No further issues", or padding lines just to fill space. If a field has no evidence,
+  OMIT it — a shorter output is always better than invented content.
+- 📝 Log lines: ONLY include when the journal context contains an actual relevant log line.
+  Convey its meaning faithfully, do not invent one. If no relevant log exists, OMIT the 📝 line.
+- ⏱️ Duration/timing lines: ONLY for backup/migration durations explicitly present in the input.
+  NEVER use ⏱️ for vague "event detected at X" filler.
 - NO CONVERSATIONAL TEXT: Never write "Here is...", "I've translated...", "Let me explain..."
 - ONLY use information from: the message, journal context, and known error database (if provided)
 
@@ -1884,7 +1910,12 @@ Your goal is to maintain the original structure of the message while using emoji
 ESPECIALLY when adding new context, formatting technical data, or writing tips.
 
 RULES:
-1. PRESERVE BASE STRUCTURE: Respect the original fields and layout provided in the input message.
+1. PRESERVE BASE STRUCTURE AND INPUT EMOJIS: Respect the original fields and layout provided in
+   the input message. **CRITICAL: every emoji already present in the input (📊, 🏷️, 📦, 🔒, 🛠️,
+   💡, ⚠️, ✨, 🌐, 🔥, 💧, 📝, ⏱️, etc.) MUST appear in the output, in the same position relative
+   to its label.** Translating the surrounding words is fine; deleting or relocating the emoji is
+   not. You may add additional context-appropriate emojis from BODY EMOJIS below, but never strip
+   the ones the template already provides.
 2. ENHANCE WITH ICONS: Place emojis at the START of a line to identify the data type.
 3. NEW CONTEXT: When adding journal info, SMART data, or known errors, use appropriate icons to make it readable.
 4. NO SPAM: Do not put emojis in the middle or end of sentences. Use 1-3 emojis at START of lines where they add clarity. Combine when meaningful (💾✅ backup ok).

install_proxmenux.sh

@@ -791,7 +791,8 @@ install_normal_version() {
     fi
 
     for pkg in "${BASIC_DEPS[@]}"; do
-        if ! dpkg -l | grep -qw "$pkg"; then
+        # Strict per-package check — see comment in install_translation_version().
+        if ! dpkg-query -W -f='${Status}' "$pkg" 2>/dev/null | grep -q "ok installed"; then
             if apt-get install -y "$pkg" > /dev/null 2>&1; then
                 update_config "$pkg" "installed"
             else
@@ -939,7 +940,12 @@ install_translation_version() {
     
     DEPS=("dialog" "curl" "git" "python3" "python3-venv" "python3-pip")
     for pkg in "${DEPS[@]}"; do
-        if ! dpkg -l | grep -qw "$pkg"; then
+        # `dpkg -l | grep -qw "$pkg"` treats `-` as a word boundary, so a
+        # query for `python3` would falsely match `python3-pip` and skip
+        # the real `python3` install. `dpkg-query -W -f='${Status}'` asks
+        # for the EXACT package and reports "install ok installed" only
+        # when truly present. Issue #205 traced back here.
+        if ! dpkg-query -W -f='${Status}' "$pkg" 2>/dev/null | grep -q "ok installed"; then
             if apt-get install -y "$pkg" > /dev/null 2>&1; then
                 update_config "$pkg" "installed"
             else

install_proxmenux_beta.sh

@@ -569,7 +569,11 @@ install_beta() {
     fi
 
     for pkg in "${BASIC_DEPS[@]}"; do
-        if ! dpkg -l | grep -qw "$pkg"; then
+        # Strict per-package check — `dpkg -l | grep -qw python3` falsely
+        # matches `python3-pip` (the `-` is a word boundary), so dpkg-query
+        # for the EXACT package name is the only reliable test.
+        # Issue #205.
+        if ! dpkg-query -W -f='${Status}' "$pkg" 2>/dev/null | grep -q "ok installed"; then
             if apt-get install -y "$pkg" > /dev/null 2>&1; then
                 update_config "$pkg" "installed"
             else

scripts/global/share-common.func

@@ -997,3 +997,207 @@ pmx_ask_permanent_mount() {
         echo "false"
     fi
 }
+
+
+# ==========================================================
+# Inspect the filesystem behind a path inside a CT and report
+# which POSIX features it supports. Used by `samba_lxc_server.sh`
+# and `nfs_lxc_server.sh` to decide whether traditional
+# chown/chmod is enough, ACLs are needed, or the filesystem
+# (exFAT, FAT32, NTFS via fuseblk) supports neither — in which
+# case the only viable path is configuring the HOST mount with
+# `uid=`/`gid=`/`fmask=`/`dmask=` options.
+#
+# Args:
+#   $1 = CTID
+#   $2 = path inside the CT (e.g. /mnt/media)
+#
+# Echoes a single line with 4 tab-separated fields:
+#   <fstype>\t<can_chown>\t<can_acl>\t<unprivileged>
+# where can_chown / can_acl / unprivileged are "yes" / "no".
+#
+# Sample outputs:
+#   "ext4    yes    yes    no"   → ext4 on privileged CT, full POSIX
+#   "zfs     yes    no     no"   → ZFS without acltype=posixacl
+#   "exfat   no     no     no"   → exFAT, no POSIX semantics at all
+#   "ext4    yes    yes    yes"  → ext4 on unprivileged CT (caller
+#                                  must keep in mind chown from
+#                                  inside is likely to fail anyway)
+# ==========================================================
+pmx_detect_share_target_caps() {
+    local ctid="$1"
+    local path="$2"
+
+    # Filesystem reported by the kernel (NOT what fstab claims —
+    # the actual mounted FS as seen from inside the CT).
+    local fstype
+    fstype=$(pct exec "$ctid" -- stat -f -c '%T' "$path" 2>/dev/null)
+    fstype="${fstype:-unknown}"
+
+    local can_chown="yes"
+    local can_acl="yes"
+
+    case "$fstype" in
+        ext2*|ext3*|ext4*|xfs|btrfs|tmpfs|nfs*|cifs*|smb*)
+            # Native POSIX. ACL is the kernel default for these.
+            ;;
+        zfs)
+            # ZFS supports chown natively, but POSIX ACL only when
+            # acltype=posixacl. Probe with a no-op setfacl. We
+            # ensure setfacl exists first; if not, install it.
+            if ! pct exec "$ctid" -- bash -c "command -v setfacl >/dev/null" 2>/dev/null; then
+                pct exec "$ctid" -- bash -c "apt-get install -y -qq acl >/dev/null 2>&1" || true
+            fi
+            if ! pct exec "$ctid" -- setfacl -m "u::rwx" "$path" >/dev/null 2>&1; then
+                can_acl="no"
+            fi
+            ;;
+        msdos|vfat|exfat|ntfs|fuseblk)
+            # These filesystems do not carry POSIX ownership / mode
+            # / ACL at all. Permissions come exclusively from the
+            # mount-time options (uid=, gid=, fmask=, dmask=).
+            can_chown="no"
+            can_acl="no"
+            ;;
+        *)
+            # Unknown FS — probe both. We try chown to ourselves
+            # (no-op when it succeeds) and a no-op setfacl. Both
+            # are cheap and tell us what works.
+            local cur_owner
+            cur_owner=$(pct exec "$ctid" -- stat -c '%U:%G' "$path" 2>/dev/null)
+            if [[ -z "$cur_owner" ]] || ! pct exec "$ctid" -- chown "$cur_owner" "$path" >/dev/null 2>&1; then
+                can_chown="no"
+            fi
+            if ! pct exec "$ctid" -- bash -c "command -v setfacl >/dev/null" 2>/dev/null; then
+                pct exec "$ctid" -- bash -c "apt-get install -y -qq acl >/dev/null 2>&1" || true
+            fi
+            if ! pct exec "$ctid" -- setfacl -m "u::rwx" "$path" >/dev/null 2>&1; then
+                can_acl="no"
+            fi
+            ;;
+    esac
+
+    # CT type — privileged (unprivileged: 0) lets chown / chmod
+    # run as effective host root. Unprivileged CTs have a user
+    # namespace mapping and chown from inside the CT typically
+    # fails on host-side bind mounts.
+    local unprivileged
+    unprivileged=$(pct config "$ctid" 2>/dev/null | awk -F': ' '/^unprivileged:/ {print $2; exit}')
+    local unpriv_flag="no"
+    [[ "$unprivileged" == "1" ]] && unpriv_flag="yes"
+
+    printf '%s\t%s\t%s\t%s\n' "$fstype" "$can_chown" "$can_acl" "$unpriv_flag"
+}
+
+
+# ==========================================================
+# Configure ownership / permissions on a shared mountpoint so
+# the given Samba/NFS user can write to it. Branches by the
+# filesystem capabilities reported by pmx_detect_share_target_caps.
+#
+# Args:
+#   $1 = CTID
+#   $2 = mount point inside the CT
+#   $3 = username inside the CT (must already exist)
+#
+# Returns:
+#   0 on success or partial success (warnings shown).
+#   1 only on hard failures the caller should refuse to proceed on.
+#
+# Expects the global helper `sharedfiles` group to already exist
+# in the CT (caller is responsible for that — see
+# setup_universal_sharedfiles_group).
+# ==========================================================
+pmx_setup_share_permissions() {
+    local ctid="$1"
+    local mp="$2"
+    local username="$3"
+
+    # Probe filesystem capabilities.
+    local caps fstype can_chown can_acl unpriv
+    caps=$(pmx_detect_share_target_caps "$ctid" "$mp")
+    IFS=$'\t' read -r fstype can_chown can_acl unpriv <<<"$caps"
+
+    msg_info "$(translate "Detected filesystem at $mp:") $fstype  (chown=$can_chown, acl=$can_acl, unprivileged_ct=$unpriv)"
+
+    # Always ensure the user is in the sharedfiles group — this
+    # is harmless regardless of FS capabilities. Skip when no user
+    # was passed (NFS path: only the group matters, no per-user ACL).
+    if [[ -n "$username" ]]; then
+        pct exec "$ctid" -- usermod -aG sharedfiles "$username" 2>/dev/null || true
+    fi
+
+    # ACL spec — include the user only when one is provided.
+    local acl_spec="g:sharedfiles:rwx,m::rwx"
+    if [[ -n "$username" ]]; then
+        acl_spec="u:$username:rwx,$acl_spec"
+    fi
+
+    if [[ "$can_chown" == "yes" ]]; then
+        # POSIX-friendly filesystem. Set group ownership +
+        # setgid bit so new files inherit the group.
+        if pct exec "$ctid" -- chown root:sharedfiles "$mp" 2>/dev/null \
+            && pct exec "$ctid" -- chmod 2775 "$mp" 2>/dev/null; then
+            msg_ok "$(translate "Ownership set to root:sharedfiles with 2775 on:") $mp"
+        else
+            msg_warn "$(translate "chown/chmod failed — likely unprivileged CT against host bind mount. Falling back to ACL.")"
+        fi
+
+        if [[ "$can_acl" == "yes" ]]; then
+            # Access + default ACL so new files clients create
+            # inherit write permission for the sharedfiles group
+            # (and the Samba user, when one is provided). Without
+            # `-d` (default ACL) the parent's ACL doesn't propagate
+            # to children → new files end up with restrictive 755
+            # and clients get "permission denied" on the next write.
+            # `m::rwx` keeps the ACL mask from clipping rwx grants.
+            pct exec "$ctid" -- setfacl -R    -m "$acl_spec" "$mp" 2>/dev/null || true
+            pct exec "$ctid" -- setfacl -R -d -m "$acl_spec" "$mp" 2>/dev/null || true
+            msg_ok "$(translate "POSIX ACLs applied (access + default for inheritance).")"
+        else
+            msg_warn "$(translate "Filesystem $fstype does not support POSIX ACLs — relying on group ownership only.")"
+            if [[ "$fstype" == "zfs" ]]; then
+                msg_warn "$(translate "Tip: zfs set acltype=posixacl xattr=sa <pool>/<dataset> enables full ACL support.")"
+            fi
+        fi
+    else
+        # exFAT / FAT32 / NTFS-fuse / similar — permissions live
+        # entirely in the host mount options. Don't waste cycles
+        # trying chown/chmod/setfacl; tell the user what to do
+        # and refuse to silently produce a broken share.
+        local uid_in_ct gid_in_ct
+        uid_in_ct=$(pct exec "$ctid" -- id -u "$username" 2>/dev/null)
+        gid_in_ct=$(pct exec "$ctid" -- getent group sharedfiles 2>/dev/null | cut -d: -f3)
+        msg_warn "$(translate "Filesystem $fstype does NOT support chown/chmod/ACL.")"
+        msg_warn "$(translate "On a privileged CT the mount options carry the only permissions.")"
+        msg_warn "$(translate "Stop the CT, unmount the disk on the HOST, and remount with:")"
+        echo
+        echo "  mount -o uid=${uid_in_ct:-1000},gid=${gid_in_ct:-100},fmask=0002,dmask=0002 <device> <hostpath>"
+        echo
+        msg_warn "$(translate "Then update /etc/fstab on the host with the same options.")"
+        msg_warn "$(translate "Recommendation: reformat the disk to ext4 for a robust setup — see docs.")"
+    fi
+
+    # Verify the user can actually write. `runuser` instead of
+    # `su` — `pct exec ... su -` raises 'cannot set groups:
+    # Operation not permitted' due to a PAM/cap quirk with the
+    # exec entry path; runuser doesn't have that issue.
+    # Skipped for the NFS path (no specific user to test as — the
+    # NFS server itself decides UID mapping at export time).
+    if [[ -z "$username" ]]; then
+        msg_ok "$(translate "Directory configured for sharedfiles group access on:") $mp"
+        return 0
+    fi
+
+    local has_access
+    has_access=$(pct exec "$ctid" -- runuser -u "$username" -- \
+        bash -c "test -w '$mp' && echo yes || echo no" 2>/dev/null)
+    if [[ "$has_access" == "yes" ]]; then
+        msg_ok "$(translate "Write access verified for user:") $username"
+        return 0
+    else
+        msg_error "$(translate "Write access test FAILED for user:") $username"
+        msg_warn "$(translate "Samba/NFS clients will likely receive 'permission denied'. Review the steps above.")"
+        return 1
+    fi
+}

scripts/post_install/auto_post_install.sh

@@ -602,12 +602,9 @@ EOF
 
 install_log2ram_auto() {
     local FUNC_VERSION="1.2"
+
     # description: Install Log2RAM with size auto-tuned to host RAM (128M/256M/512M); SSD/M.2 detection skips on rotational disks.
-    # ── Reinstall detection ─────────────────────────────────────────────────
+
-    # If log2ram was previously installed by ProxMenux, skip hardware detection
-    # and reinstall directly — no prompts, transparent to user. Sprint 12A:
-    # also matches the new structured form `{"installed": true, ...}` written by
-    # the updated register_tool, in addition to the legacy boolean true entry.
     if [[ -f "$TOOLS_JSON" ]] && jq -e '.log2ram == true or .log2ram.installed == true' "$TOOLS_JSON" >/dev/null 2>&1; then
         msg_ok "$(translate "Log2RAM already registered — updating to latest configuration")"
     else
@@ -854,6 +851,11 @@ EOF
     #msg_ok "$(translate "Backup created:") /etc/systemd/journald.conf.bak.$(date +%Y%m%d-%H%M%S)"
     msg_ok "$(translate "Journald configuration adjusted to") ${USE_MB}M (Log2RAM ${LOG2RAM_SIZE})"
 
+    systemctl daemon-reload >/dev/null 2>&1 || true
+    systemctl restart log2ram >/dev/null 2>&1 || true
+    log2ram clean >/dev/null 2>&1 || true
+    log2ram write >/dev/null 2>&1 || true
+    systemctl restart rsyslog >/dev/null 2>&1 || true
 
     register_tool "log2ram" true "$FUNC_VERSION"
 }
@@ -933,6 +935,7 @@ enable_zfs_autotrim() {
         fi
 
         if ! pool_supports_autotrim "$pool"; then
+            stop_spinner
             msg_info2 "$(translate "Pool does not appear to use SSD/NVMe devices with discard support. Skipping ZFS autotrim for pool:") $pool"
             continue
         fi

scripts/share/nfs_lxc_server.sh

@@ -280,9 +280,13 @@ create_nfs_export() {
 
 
     msg_info "$(translate "Setting directory ownership and permissions...")"
-    pct exec "$CTID" -- chown root:sharedfiles "$MOUNT_POINT"
+    # Hand off ownership/perm setup to the shared helper. It detects the
-    pct exec "$CTID" -- chmod 2775 "$MOUNT_POINT"  
+    # underlying filesystem (ext4/xfs/zfs/exfat/ntfs-fuse/…), picks the
-    msg_ok "$(translate "Directory configured with sharedfiles group ownership")"
+    # right strategy (chown+chmod, ACLs, or just inform the user when
+    # the FS can't carry POSIX permissions), and verifies the result
+    # with `runuser`. Empty username — NFS doesn't authenticate per-user
+    # the way Samba does; the `sharedfiles` group is all we need.
+    pmx_setup_share_permissions "$CTID" "$MOUNT_POINT" ""
 
 
 

scripts/share/samba_lxc_server.sh

@@ -173,11 +173,10 @@ create_share() {
     if [[ -n "$IS_MOUNTED" ]]; then
         msg_info "$(translate "Detected a mounted directory from host. Setting up shared group...")"
 
-        # Match the GID `nfs_lxc_server.sh` uses (101000) so the same
+        # The `sharedfiles` group bridges Samba- and NFS-served paths so a
-        # `sharedfiles` group bridges Samba- and NFS-served paths. The
+        # file written by one protocol is writable by the other. Fixed GID
-        # previous `999` was inconsistent — files written via Samba were
+        # 101000 keeps the group ID consistent across CTs / hosts that
-        # owned by GID 999 and not visible to NFS clients accessing the
+        # share the same mount.
-        # same dataset. Audit Tier 6 — GID inconsistente.
         SHARE_GID=101000
         GROUP_EXISTS=$(pct exec "$CTID" -- getent group sharedfiles || true)
         GID_IN_USE=$(pct exec "$CTID" -- getent group "$SHARE_GID" | cut -d: -f1 || true)
@@ -194,64 +193,22 @@ create_share() {
             msg_ok "$(translate "Group 'sharedfiles' already exists inside the CT")"
         fi
 
-        if pct exec "$CTID" -- getent group sharedfiles >/dev/null; then
+        # Hand off ownership/perm setup to the shared helper. It detects
-            pct exec "$CTID" -- usermod -aG sharedfiles "$USERNAME"
+        # the underlying filesystem (ext4/xfs/zfs/exfat/ntfs-fuse/…), picks
-            # chown/chmod on a host bind-mount FAIL with "Operation not
+        # the right strategy (chown+chmod, ACLs, or just inform the user
-            # permitted" inside an unprivileged CT — the kernel won't let
+        # if the FS can't carry POSIX permissions), and verifies write
-            # an unprivileged user namespace change ownership of files
+        # access with `runuser` (avoids the `su: cannot set groups`
-            # that belong to a different (real-host) UID. The host owns
+        # PAM quirk that hits `pct exec`).
-            # the directory; we only need write access for $USERNAME and
+        pmx_setup_share_permissions "$CTID" "$MOUNT_POINT" "$USERNAME"
-            # the `sharedfiles` group, which the ACL block below handles.
-            # Silence the failure so it doesn't look alarming in the log.
-            pct exec "$CTID" -- chown root:sharedfiles "$MOUNT_POINT" 2>/dev/null || true
-            pct exec "$CTID" -- chmod 2775 "$MOUNT_POINT" 2>/dev/null || true
-        else
-            msg_error "$(translate "Group 'sharedfiles' was not created successfully. Skipping chown/usermod.")"
-        fi
-
-        # Apply BOTH access and default POSIX ACLs unconditionally.
-        # Previously this ran only when `test -w` failed for $USERNAME —
-        # but a local `test -w` says nothing about whether Samba can
-        # write through the share. Once Windows creates a *new* file or
-        # subfolder, it inherits the parent's effective ACL; without a
-        # `default:` entry the new entry has no ACL at all and falls
-        # back to the host bind-mount's restrictive 755 → Windows shows
-        # "permission denied" even though the same user can write from
-        # inside the CT shell. The `-d` flag is what fixes that.
-        # `m::rwx` keeps the ACL mask from clipping rwx grants.
-        if pct exec "$CTID" -- bash -c "command -v setfacl >/dev/null"; then
-            pct exec "$CTID" -- setfacl -R \
-                -m "u:$USERNAME:rwx,g:sharedfiles:rwx,m::rwx" \
-                "$MOUNT_POINT" 2>/dev/null || true
-            pct exec "$CTID" -- setfacl -R -d \
-                -m "u:$USERNAME:rwx,g:sharedfiles:rwx,m::rwx" \
-                "$MOUNT_POINT" 2>/dev/null || true
-        else
-            pct exec "$CTID" -- apt-get install -y -qq acl >/dev/null 2>&1 || true
-            pct exec "$CTID" -- setfacl -R \
-                -m "u:$USERNAME:rwx,g:sharedfiles:rwx,m::rwx" \
-                "$MOUNT_POINT" 2>/dev/null || true
-            pct exec "$CTID" -- setfacl -R -d \
-                -m "u:$USERNAME:rwx,g:sharedfiles:rwx,m::rwx" \
-                "$MOUNT_POINT" 2>/dev/null || true
-        fi
-
-        HAS_ACCESS=$(pct exec "$CTID" -- su -s /bin/bash -c "test -w '$MOUNT_POINT' && echo yes || echo no" "$USERNAME" 2>/dev/null)
-        if [ "$HAS_ACCESS" = "no" ]; then
-            msg_warn "$(translate "ACL applied but write test still failed — check host-side permissions of:") $MOUNT_POINT"
-        else
-            msg_ok "$(translate "Write access (incl. default ACL for new files) confirmed for user:") $USERNAME"
-        fi
     else
         msg_ok "$(translate "No shared mount detected. Applying standard local access.")"
-        # Local (CT-internal) path — chown/chmod should normally succeed,
+        # Local (CT-internal) path: rootfs is always POSIX-friendly, so
-        # but on rare bind setups (e.g. zfs with acltype=off) they can
+        # chown/chmod always succeed. Keep the previous behaviour.
-        # still trip. Suppress stderr to keep the log clean; the
+        pct exec "$CTID" -- chown -R "$USERNAME:$USERNAME" "$MOUNT_POINT"
-        # write-access probe below is the source of truth.
+        pct exec "$CTID" -- chmod -R 755 "$MOUNT_POINT"
-        pct exec "$CTID" -- chown -R "$USERNAME:$USERNAME" "$MOUNT_POINT" 2>/dev/null || true
-        pct exec "$CTID" -- chmod -R 755 "$MOUNT_POINT" 2>/dev/null || true
 
-        HAS_ACCESS=$(pct exec "$CTID" -- su -s /bin/bash -c "test -w '$MOUNT_POINT' && echo yes || echo no" "$USERNAME" 2>/dev/null)
+        HAS_ACCESS=$(pct exec "$CTID" -- runuser -u "$USERNAME" -- \
+            bash -c "test -w '$MOUNT_POINT' && echo yes || echo no" 2>/dev/null)
         if [ "$HAS_ACCESS" = "no" ]; then
             pct exec "$CTID" -- setfacl -R -m "u:$USERNAME:rwx" "$MOUNT_POINT" 2>/dev/null || true
             msg_warn "$(translate "ACL permissions applied for local access for user:") $USERNAME"
@@ -268,6 +225,14 @@ create_share() {
     
     SHARE_NAME=$(basename "$MOUNT_POINT")
     
+    # `force user = $USERNAME` makes every Samba file operation happen
+    # under that unix UID regardless of the connecting Windows account.
+    # Combined with `force group = sharedfiles` and the matching
+    # ownership / ACLs applied earlier, this is what keeps writes
+    # consistent on host bind-mounts where the kernel sees Samba's
+    # impersonated UID — without it Windows can authenticate fine but
+    # writes silently fail because Samba ends up writing as some other
+    # mapped UID with no permission on the target.
     case "$SHARE_OPTIONS" in
         rw)
             CONFIG=$(cat <<EOF
@@ -279,6 +244,7 @@ create_share() {
     browseable = yes
     guest ok = no
     valid users = $USERNAME
+    force user = $USERNAME
     force group = sharedfiles
     create mask = 0664
     directory mask = 2775
@@ -298,6 +264,7 @@ EOF
     browseable = yes
     guest ok = no
     valid users = $USERNAME
+    force user = $USERNAME
     force group = sharedfiles
     veto files = /lost+found/
 EOF
@@ -310,6 +277,7 @@ EOF
     comment = Custom shared folder for $USERNAME
     path = $MOUNT_POINT
     valid users = $USERNAME
+    force user = $USERNAME
     force group = sharedfiles
     $CUSTOM_CONFIG
     veto files = /lost+found/
@@ -326,6 +294,7 @@ EOF
     browseable = yes
     guest ok = no
     valid users = $USERNAME
+    force user = $USERNAME
     force group = sharedfiles
     create mask = 0664
     directory mask = 2775