feat: overhaul public landing page and backup tooling

frontend/src/i18n/locales/en.json

@@ -456,12 +456,66 @@
       "dateFormat": "Date Format",
       "dateFormatHelp": "How dates are displayed in emails and throughout the application"
     },
+    "publicSite": {
+      "tabLabel": "Public Site",
+      "badge": "Public Landing",
+      "title": "Public Landing Page",
+      "subtitle": "Publish a customized landing page for guests when they visit your domain.",
+      "loading": "Loading public site settings...",
+      "enabled": "Enabled",
+      "disabled": "Disabled",
+      "htmlLabel": "Landing Page HTML",
+      "htmlPlaceholder": "Provide the HTML markup for your landing page hero, sections, and calls to action.",
+      "htmlHelp": "Raw HTML is sanitized on save. Unsafe tags, inline scripts, and disallowed attributes are removed automatically. Tokens such as {{company_name}}, {{company_tagline}}, and {{support_email}} will be substituted with values from Branding settings.",
+      "cssLabel": "Custom CSS",
+      "cssPlaceholder": "Optional CSS overrides to adjust layout, colors, or typography.",
+      "cssHelp": "Imports and JavaScript URLs are stripped. Use standard CSS selectors to override the default styling.",
+      "saveCta": "Save public site",
+      "saving": "Saving...",
+      "saveSuccess": "Public site settings saved.",
+      "saveError": "Failed to save public site settings.",
+      "resetCta": "Reset to default",
+      "resetting": "Resetting...",
+      "resetSuccess": "Public site template reset to defaults.",
+      "resetError": "Failed to reset public site template.",
+      "previewTitle": "Live Preview",
+      "previewSandboxed": "Sandboxed preview",
+      "previewDisabled": "Enable the public site to see the live preview.",
+      "sanitizationNotice": "Scripts, embedded frames, and unsafe attributes are removed before publishing. Only safe HTML, links, and images are allowed.",
+      "htmlRequired": "Provide HTML content before enabling the public site."
+    },
     "storage": {
       "title": "Storage",
       "overview": "Storage Overview",
       "totalUsed": "Total Used",
       "archiveStorage": "Archive Storage",
       "storageLimit": "Storage Limit",
+      "storageLimitHelper": "Set a limit for photo storage usage. This limit is advisory and will highlight when reached.",
+      "softLimitInputLabel": "Limit (GB)",
+      "softLimitHelper": "Enter the preferred maximum storage usage in gigabytes.",
+      "recommendedSoftLimit": "Suggested Limit",
+      "diskCapacity": "Disk Capacity",
+      "diskCapacityReported": "Disk Capacity (reported)",
+      "diskAvailable": "Available",
+      "diskAvailableReported": "Available (reported)",
+      "diskFree": "Free",
+      "diskFreeReported": "Free (reported)",
+      "diskMetricsUnavailable": "Disk metrics are not available in Docker Desktop or virtualized environments.",
+      "applyRecommended": "Use recommended",
+      "applyAvailable": "Match available",
+      "invalidSoftLimit": "Enter a valid number for the limit.",
+      "saveSoftLimit": "Save limit",
+      "limitNotEnforced": "This limit is advisory only and is not enforced automatically.",
+      "overrideTitle": "Manual capacity override",
+      "diskOverrideEnvNote": "Disk capacity is controlled by environment variables and cannot be edited here.",
+      "diskOverrideSettingsHelp": "Set custom capacity values when Docker reports unrealistic figures.",
+      "overrideCapacityLabel": "Total capacity (GB)",
+      "overrideCapacityHelper": "Leave blank to use the automatic reading.",
+      "overrideAvailableLabel": "Available space (GB)",
+      "overrideAvailableHelper": "Optional. Leave blank to calculate from total capacity minus used storage.",
+      "saveOverride": "Save capacity override",
+      "capacityRequiredForAvailable": "Enter a total capacity before setting available space.",
+      "availableExceedsCapacity": "Available space cannot exceed the total capacity.",
       "storageUsage": "Storage Usage",
       "storageByEvent": "Storage by Event",
       "storageManagement": "Storage Management",
@@ -732,7 +786,9 @@
     "activeGalleries": "Active Galleries",
     "storageUsed": "Storage Used",
     "totalPhotos": "Total Photos",
-    "storagePercent": "{{percent}}% of {{limit}}",
+    "storagePercent": "{{percent}}% of limit {{limit}}",
+    "storageSoftLimitConfigured": "Configured limit: {{limit}}",
+    "storageSoftLimitRecommended": "Suggested limit: {{limit}}",
     "version": "Version",
     "archivedEvents": "Archived Events",
     "systemHealth": "System Health",