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

.env.production.example

@@ -1,10 +1,12 @@
 # =====================================================
-# MyEasyCMS v2 — Environment Variables
+# MyEasyCMS v2 — Environment Variables (Production)
 # Copy to .env and fill in your values
 # =====================================================
 
-# --- Supabase ---
+# --- Supabase Database ---
 POSTGRES_PASSWORD=change-me-to-a-strong-password
+
+# --- Supabase Auth ---
 JWT_SECRET=change-me-to-at-least-32-characters-long-secret
 
 # Generate these with: npx supabase gen keys
@@ -15,11 +17,17 @@ SUPABASE_SERVICE_ROLE_KEY=your-service-role-key-here
 SITE_URL=https://myeasycms.de
 APP_PORT=3000
 
-# --- Kong ---
+# --- Kong (API Gateway) ---
 KONG_HTTP_PORT=8000
 KONG_HTTPS_PORT=8443
 API_EXTERNAL_URL=https://api.myeasycms.de
 
+# --- Studio (Dashboard) ---
+STUDIO_PORT=54323
+
+# --- Inbucket (Email testing — dev only) ---
+INBUCKET_PORT=54324
+
 # --- Email (SMTP) ---
 SMTP_HOST=smtp.example.com
 SMTP_PORT=587
@@ -27,7 +35,7 @@ SMTP_USER=noreply@myeasycms.de
 SMTP_PASS=your-smtp-password
 SMTP_ADMIN_EMAIL=admin@myeasycms.de
 
-# --- Auth ---
+# --- Auth Settings ---
 ENABLE_EMAIL_AUTOCONFIRM=false
 DISABLE_SIGNUP=false
 JWT_EXPIRY=3600