feat(docker): add Docker Compose deployment for Dokploy

- backend/Dockerfile: Python 3.12-slim, uvicorn on port 8000
- frontend/Dockerfile: multi-stage Node build + nginx:alpine serve
- frontend/nginx.conf: proxy /api to backend, SPA routing for Vue Router
- docker-compose.yml: backend+frontend services with Traefik labels
- fix(cors): use settings.frontend_url instead of hardcoded localhost

Fixes Nixpacks detection failure (requirements.txt/package.json not at root).

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

backend/Dockerfile

@@ -0,0 +1,14 @@
+FROM python:3.12-slim
+
+WORKDIR /app
+
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+COPY . .
+
+RUN mkdir -p uploads
+
+EXPOSE 8000
+
+CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8000"]

backend/app/main.py

@@ -34,7 +34,7 @@ app = FastAPI(title=settings.app_name)
 # CORS middleware
 app.add_middleware(
     CORSMiddleware,
-    allow_origins=["http://localhost:5173"],  # Frontend dev server
+    allow_origins=[settings.frontend_url, "http://localhost:5173"],
     allow_credentials=True,
     allow_methods=["*"],
     allow_headers=["*"],

docker-compose.yml

@@ -0,0 +1,42 @@
+version: "3.8"
+
+services:
+  backend:
+    build: ./backend
+    restart: unless-stopped
+    environment:
+      - SECRET_KEY=${SECRET_KEY:-change-me-in-production}
+      - DATABASE_URL=sqlite:////data/space_booking.db
+      - FRONTEND_URL=${FRONTEND_URL:-http://localhost}
+      - SMTP_HOST=${SMTP_HOST:-localhost}
+      - SMTP_PORT=${SMTP_PORT:-1025}
+      - SMTP_ENABLED=${SMTP_ENABLED:-false}
+    volumes:
+      - backend_data:/data
+      - uploads_data:/app/uploads
+    networks:
+      - internal
+
+  frontend:
+    build: ./frontend
+    restart: unless-stopped
+    networks:
+      - internal
+      - dokploy-network
+    depends_on:
+      - backend
+    labels:
+      - "traefik.enable=true"
+      - "traefik.http.routers.space-booking.rule=Host(`${DOMAIN:-space-booking.roa.romfast.ro}`)"
+      - "traefik.http.routers.space-booking.tls=true"
+      - "traefik.http.services.space-booking.loadbalancer.server.port=80"
+
+volumes:
+  backend_data:
+  uploads_data:
+
+networks:
+  internal:
+    driver: bridge
+  dokploy-network:
+    external: true

frontend/Dockerfile

@@ -0,0 +1,13 @@
+FROM node:20-alpine AS builder
+
+WORKDIR /app
+COPY package*.json ./
+RUN npm ci
+COPY . .
+RUN npm run build
+
+FROM nginx:alpine
+COPY --from=builder /app/dist /usr/share/nginx/html
+COPY nginx.conf /etc/nginx/conf.d/default.conf
+
+EXPOSE 80

frontend/nginx.conf

@@ -0,0 +1,21 @@
+server {
+    listen 80;
+    server_name _;
+
+    root /usr/share/nginx/html;
+    index index.html;
+
+    # Proxy API requests to backend service
+    location /api {
+        proxy_pass http://backend:8000;
+        proxy_set_header Host $host;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Proto $scheme;
+    }
+
+    # SPA routing - all other routes serve index.html
+    location / {
+        try_files $uri $uri/ /index.html;
+    }
+}