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

Dockerfile

@@ -2,23 +2,15 @@ FROM node:22-alpine AS base
 RUN corepack enable && corepack prepare pnpm@latest --activate
 WORKDIR /app
 
-# --- Install deps ---
-FROM base AS deps
-COPY pnpm-lock.yaml pnpm-workspace.yaml package.json ./
-COPY apps/web/package.json ./apps/web/
-COPY apps/dev-tool/package.json ./apps/dev-tool/
-COPY tooling/ ./tooling/
-COPY packages/ ./packages/
-RUN pnpm install --frozen-lockfile
-
-# --- Build ---
+# --- Install + Build in one stage ---
 FROM base AS builder
-COPY --from=deps /app/ ./
+ARG CACHE_BUST=1
 COPY . .
+RUN pnpm install --no-frozen-lockfile
 ENV NEXT_TELEMETRY_DISABLED=1
 ENV NEXT_PUBLIC_SITE_URL=https://myeasycms.de
-ENV NEXT_PUBLIC_SUPABASE_URL=placeholder
-ENV NEXT_PUBLIC_SUPABASE_PUBLIC_KEY=placeholder
+ENV NEXT_PUBLIC_SUPABASE_URL=http://localhost:8000
+ENV NEXT_PUBLIC_SUPABASE_PUBLIC_KEY=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJyb2xlIjoiYW5vbiIsImlzcyI6InN1cGFiYXNlIiwiaWF0IjoxNzc0ODgzNDYwLCJleHAiOjIwOTAyNDM0NjB9.hbeQae1gYRTcJQ_6m7MPjoDlYFhp4tsszEQD2g5q6vY
 RUN pnpm --filter web build
 
 # --- Run ---