chore: initial project setup with backend, frontend, and infrastructure

Add complete NexaPantry application structure including:
- Docker Compose configuration with PostgreSQL, Redis, FastAPI backend, worker, frontend and Caddy
- Environment configuration template with database, auth, and service settings
- GitHub Actions CI workflow for backend/frontend linting, testing, auditing and Docker builds
- AGPL-3.0 license and comprehensive README with setup, development, and security documentation
- Backend

backend/app/api/routes/recipes.py

@@ -0,0 +1,18 @@
+from fastapi import APIRouter, Depends
+from sqlalchemy import select
+from sqlalchemy.orm import Session
+
+from app.api.deps import current_user, require_home_member
+from app.db.session import get_db
+from app.models.entities import Product, User
+from app.services.recipes import suggest
+
+router = APIRouter()
+
+
+@router.get("")
+def recipe_suggestions(home_id: str, user: User = Depends(current_user), db: Session = Depends(get_db)) -> list[dict]:
+    require_home_member(home_id, db, user)
+    products = list(db.scalars(select(Product).where(Product.home_id == home_id)).all())
+    return suggest(products, user.language)
+