complete i18n migration to /[locale]/ with EN+ES content

Full rewrite of the docs site under app/[locale]/ with next-intl
in localePrefix:"always" mode. Every page now exists at both
/en/<path> and /es/<path>; the root / shows a meta-refresh + JS
redirect to /<defaultLocale>/ so GitHub Pages serves something
on the apex URL.

Highlights:
- 107 doc pages migrated to file-per-page JSON namespaces under
  messages/en/ and messages/es/. Spanish content is fully
  translated (no copy-of-English placeholders).
- New documentation for the Active Suppressions section in the
  Settings tab and the per-event Dismiss dropdown in the Health
  Monitor modal.
- New screenshots: dismiss-duration-dropdown.png and an updated
  health-suppression-settings.png.
- Pagefind integrated for client-side search; index is built on
  every CI deploy (not committed).
- RSS feeds: per-locale at /<locale>/rss.xml plus root /rss.xml
  for backward compat.
- Removed the dead app/[locale]/guides/[slug]/ route — every
  guide now has its own static page and no markdown source
  remains.
- Fixed orphan link /guides/nvidia -> /guides/nvidia-manual in
  docs/hardware/nvidia-host.
- Removed obsolete components (footer2, calendar, drawer).

Verified locally with `npm ci && npm run build`: 2804 files in
out/, 231 pages indexed by pagefind, root redirect intact, both
locale roots and the new Active Suppressions docs render OK.

web/messages/en/common.json

@@ -0,0 +1,216 @@
+{
+  "site": {
+    "name": "ProxMenux",
+    "tagline": "Interactive Menu and Web Dashboard for Proxmox VE"
+  },
+  "nav": {
+    "home": "Home",
+    "docs": "Docs",
+    "documentation": "Documentation",
+    "guides": "Guides",
+    "changelog": "Changelog",
+    "github": "GitHub",
+    "rss": "RSS",
+    "rssTitle": "RSS Feed",
+    "menuOpen": "Open menu"
+  },
+  "footer": {
+    "sponsorHeading": "Sponsor",
+    "sponsorBody": "If you would like to support the project.",
+    "sponsorAlt": "Support me on Ko-fi",
+    "connectHeading": "Connect",
+    "connectBody": "Join the community discussions on GitHub to get help, share ideas, and contribute to the project. Every idea is welcome!",
+    "joinDiscussion": "Join the Discussion",
+    "copyrightPrefix": "ProxMenux, an open-source and collaborative project by",
+    "copyrightSuffix": "."
+  },
+  "language": {
+    "switcher": "Language",
+    "en": "English",
+    "es": "Español"
+  },
+  "resources": {
+    "documentation": {
+      "title": "Documentation",
+      "description": "System description and user guides"
+    },
+    "changelog": {
+      "title": "Changelog",
+      "description": "Information on the latest updates"
+    },
+    "guides": {
+      "title": "Guides",
+      "description": "Step-by-step tutorials and guides for common tasks"
+    },
+    "github": {
+      "title": "GitHub Repository",
+      "description": "Explore the source code."
+    }
+  },
+  "docSidebar": {
+    "documentation": "Documentation",
+    "items": {
+      "introduction": "Introduction",
+      "installation": "Installation",
+      "proxmenuxMonitor": "ProxMenux Monitor",
+      "monitorOverview": "Overview",
+      "architecture": "Architecture",
+      "accessAuth": "Access & Authentication",
+      "dashboard": "Dashboard",
+      "dashboardSystemOverview": "System Overview tab",
+      "dashboardStorage": "Storage tab",
+      "dashboardNetwork": "Network tab",
+      "dashboardVmsLxcs": "VMs & LXCs tab",
+      "dashboardHardware": "Hardware tab",
+      "dashboardSystemLogs": "System Logs tab",
+      "dashboardTerminal": "Terminal tab",
+      "dashboardSecurity": "Security tab",
+      "dashboardSettings": "Settings tab",
+      "healthMonitor": "Health Monitor",
+      "notifications": "Notifications",
+      "aiAssistant": "AI Assistant",
+      "apiReference": "API Reference",
+      "integrations": "Integrations",
+      "proxmenuxScripts": "ProxMenux Scripts",
+      "postInstallScript": "Post-Install Script",
+      "postInstallOverview": "Overview",
+      "postInstallAutomated": "Automated",
+      "postInstallCustomizable": "Customizable",
+      "postInstallBasicSettings": "Basic Settings",
+      "postInstallSystem": "System",
+      "postInstallVirtualization": "Virtualization",
+      "postInstallNetwork": "Network",
+      "postInstallStorage": "Storage",
+      "postInstallSecurity": "Security",
+      "postInstallCustomization": "Customization",
+      "postInstallMonitoring": "Monitoring",
+      "postInstallPerformance": "Performance",
+      "postInstallOptional": "Optional",
+      "postInstallUpdates": "Apply Available Updates",
+      "postInstallUninstall": "Uninstall Optimizations",
+      "gpusCoralTpu": "GPUs and Coral-TPU",
+      "nvidiaHost": "Install NVIDIA Drivers (Host)",
+      "coralHost": "Install Coral TPU (Host)",
+      "addGpuLxc": "Add GPU to LXC",
+      "addCoralLxc": "Add Coral TPU to LXC",
+      "addGpuVm": "Add GPU to VM (Passthrough)",
+      "switchGpuMode": "Switch GPU Mode (VM ↔ LXC)",
+      "createVm": "Create VM",
+      "createVmOverview": "Overview",
+      "createVmSystemNas": "System NAS",
+      "createVmSynology": "Synology VM",
+      "createVmNasOthers": "Others System NAS",
+      "createVmSystemWindows": "System Windows",
+      "createVmSystemLinux": "System Linux",
+      "diskManager": "Disk Manager",
+      "diskManagerOverview": "Overview",
+      "diskImportVm": "Import Disk to VM",
+      "diskImportImageVm": "Import Disk Image to VM",
+      "diskAddController": "Add Controller or NVMe to VM",
+      "diskImportLxc": "Import Disk to LXC",
+      "diskFormat": "Format / Wipe Physical Disk",
+      "diskSmart": "SMART Disk Health & Test",
+      "storageShareManager": "Storage & Share Manager",
+      "storageShareOverview": "Overview",
+      "hostStorage": "Host storage integration",
+      "hostNfs": "Add NFS share as Proxmox storage",
+      "hostSamba": "Add Samba share as Proxmox storage",
+      "hostIscsi": "Add iSCSI target as Proxmox storage",
+      "hostLocalDisk": "Add local disk as Proxmox storage",
+      "hostLocalShared": "Add shared directory on Host",
+      "lxcMountPoints": "LXC Mount Points (Host ↔ CT)",
+      "lxcNetworkSharing": "LXC network sharing",
+      "lxcNfsClient": "NFS client in LXC",
+      "lxcSambaClient": "Samba client in LXC",
+      "lxcNfsServer": "NFS server in LXC",
+      "lxcSambaServer": "Samba server in LXC",
+      "network": "Network",
+      "networkOverview": "Overview",
+      "networkDiagnostics": "Diagnostics",
+      "networkMonitoring": "Live monitoring tools",
+      "networkBridge": "Bridge analysis & repair",
+      "networkConfig": "Config analysis & cleanup",
+      "networkPersistent": "Persistent interface names",
+      "networkBackup": "Interfaces backup & restart",
+      "security": "Security",
+      "securityOverview": "Overview",
+      "securityFail2ban": "Fail2Ban",
+      "securityLynis": "Lynis",
+      "utilities": "Utilities",
+      "utilsOverview": "Overview",
+      "utilsUupDump": "UUP Dump ISO Creator",
+      "utilsSystemUtils": "System Utilities Installer",
+      "utilsSystemUpdate": "Proxmox System Update",
+      "utilsUpgradePve": "Upgrade PVE 8 to PVE 9",
+      "utilsExportVm": "Export VM to OVA / OVF",
+      "utilsImportVm": "Import VM from OVA / OVF",
+      "settingsProxmenux": "Settings ProxMenux",
+      "settingsOverview": "Overview",
+      "settingsMonitor": "ProxMenux Monitor",
+      "settingsBeta": "Change Release Channel",
+      "settingsVersion": "Show Version Information",
+      "settingsUninstall": "Uninstall ProxMenux",
+      "commandsReference": "Commands Reference",
+      "commandsOverview": "Overview",
+      "commandsSystem": "Useful System Commands",
+      "commandsVmCt": "VM and CT Management",
+      "commandsStorage": "Storage and Disks",
+      "commandsNetwork": "Network Commands",
+      "commandsUpdates": "Updates and Packages",
+      "commandsGpu": "GPU Passthrough",
+      "commandsZfs": "ZFS Management",
+      "commandsBackup": "Backup and Restore",
+      "commandsTools": "System CLI Tools",
+      "glossary": "Glossary",
+      "about": "About",
+      "aboutOverview": "Overview",
+      "aboutFaq": "FAQ",
+      "aboutContributors": "Contributors",
+      "aboutContributing": "Contributing",
+      "aboutCodeOfConduct": "Code of Conduct",
+      "externalRepositories": "External Repositories"
+    }
+  },
+  "hero": {
+    "title": "ProxMenux",
+    "tagline": "An Interactive Menu and Web Dashboard for Proxmox VE",
+    "description": "ProxMenux is an interactive menu and a web dashboard for Proxmox VE — run commands, scripts and guided wizards from a terminal menu, or watch host health, metrics and notifications from a browser.",
+    "installButton": "Install Now",
+    "whatIsButton": "What is ProxMenux?",
+    "logoAlt": "ProxMenux Logo"
+  },
+  "docNav": {
+    "previous": "Previous",
+    "next": "Next"
+  },
+  "tocPanel": {
+    "onThisPage": "On this page"
+  },
+  "supportProject": {
+    "heading": "Support the Project!",
+    "body": "If you find <strong>ProxMenux</strong> useful, consider giving it a ⭐ on GitHub to help others discover it!",
+    "button": "Star on GitHub"
+  },
+  "rssLink": {
+    "heading": "Stay Updated!",
+    "body": "Subscribe to our RSS feed to get notified of new changes.",
+    "copy": "Copy",
+    "copied": "Copied!",
+    "copyTitle": "Copy RSS URL",
+    "openFeed": "Open RSS Feed",
+    "openTitle": "Open RSS Feed"
+  },
+  "changelog": {
+    "pageTitle": "Changelog",
+    "meta": {
+      "title": "ProxMenux Changelog",
+      "titleSuffix": "Release Notes",
+      "latest": "Latest",
+      "mostRecent": "Most recent release",
+      "description": "Release notes and update history for ProxMenux — the menu-driven script for Proxmox VE management.",
+      "descriptionTail": "New features, bug fixes, security updates, ProxMenux Monitor improvements, AI provider compatibility, GPU passthrough hardening and more.",
+      "ogDescription": "Release notes for ProxMenux.",
+      "ogTail": "Subscribe via RSS or check back for new versions."
+    }
+  }
+}