Initial commit: SejeteralO water tarification platform

Full-stack app for participatory water pricing using Bezier curves.
- Backend: FastAPI + SQLAlchemy + SQLite with JWT auth
- Frontend: Nuxt 4 + TypeScript with interactive SVG editor
- Math engine: cubic Bezier tarification with Cardano solver
- Admin: commune management, household import, vote monitoring, CMS
- Citizen: interactive curve editor, vote submission
- Docker-compose deployment ready

Includes fixes for:
- Impact table snake_case/camelCase property mismatch
- CMS content backend API + frontend editor (was stub)
- Admin route protection middleware
- Public content display on commune page
- Vote confirmation page link fix

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

docker-compose.yml

@@ -0,0 +1,24 @@
+services:
+  backend:
+    build: ./backend
+    ports:
+      - "8000:8000"
+    environment:
+      - DATABASE_URL=sqlite+aiosqlite:///./sejeteralo.db
+      - SECRET_KEY=${SECRET_KEY:-change-me-in-production}
+      - DEBUG=false
+      - CORS_ORIGINS=["http://localhost:3000"]
+    volumes:
+      - backend-data:/app
+
+  frontend:
+    build: ./frontend
+    ports:
+      - "3000:3000"
+    environment:
+      - NUXT_PUBLIC_API_BASE=http://localhost:8000/api/v1
+    depends_on:
+      - backend
+
+volumes:
+  backend-data: