Waters Boards: self-hosted work management to replace monday.com

Boards with groups, items, subitems and 18 column types; table, kanban,
calendar, timeline, chart and files views; updates with @mentions,
replies and attachments; inbox, My work, search, automations; Google
sign-in restricted to company domains; live updates over SSE; a
monday.com API importer; phone layout and installable PWA; Docker +
Gitea Actions deploy to the NAS.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

server/public/manifest.webmanifest

@@ -0,0 +1,16 @@
+{
+  "name": "Waters Boards",
+  "short_name": "Boards",
+  "description": "Boards, tasks and projects for the Waters Church team",
+  "start_url": "/",
+  "scope": "/",
+  "display": "standalone",
+  "background_color": "#181b34",
+  "theme_color": "#181b34",
+  "icons": [
+    { "src": "/icons/icon.svg", "sizes": "any", "type": "image/svg+xml" },
+    { "src": "/icons/icon-192.png", "sizes": "192x192", "type": "image/png" },
+    { "src": "/icons/icon-512.png", "sizes": "512x512", "type": "image/png" },
+    { "src": "/icons/icon-512.png", "sizes": "512x512", "type": "image/png", "purpose": "maskable" }
+  ]
+}