feat: complete CMS v2 with Docker, Fischerei, Meetings, Verband modules + UX audit fixes

Major changes:
- Docker Compose: full Supabase stack (11 services) equivalent to supabase CLI
- Fischerei module: 16 DB tables, waters/species/stocking/catch books/competitions
- Sitzungsprotokolle module: meeting protocols, agenda items, task tracking
- Verbandsverwaltung module: federation management, member clubs, contacts, fees
- Per-account module activation via Modules page toggle
- Site Builder: live CMS data in Puck blocks (courses, events, membership registration)
- Public registration APIs: course signup, event registration, membership application
- Document generation: PDF member cards, Excel reports, HTML labels
- Landing page: real Com.BISS content (no filler text)
- UX audit fixes: AccountNotFound component, shared status badges, confirm dialog,
  pagination, duplicate heading removal, emoji→badge replacement, a11y fixes
- QA: healthcheck fix, API auth fix, enum mismatch fix, password required attribute

apps/web/i18n/messages/de/common.json

@@ -75,7 +75,10 @@
     "documents": "Dokumente",
     "newsletter": "Newsletter",
     "events": "Veranstaltungen",
-    "siteBuilder": "Website"
+    "siteBuilder": "Website",
+    "fischerei": "Fischerei",
+    "meetings": "Sitzungsprotokolle",
+    "verband": "Verbandsverwaltung"
   },
   "roles": {
     "owner": {