Set up initial frontend with Vite and integrated Docker for full-stack build

docker-compose.yml

@@ -0,0 +1,30 @@
+version: "3.8"
+
+services:
+  db:
+    image: postgres:16-alpine
+    container_name: budget-commun-db
+    restart: unless-stopped
+    environment:
+      POSTGRES_DB: budget
+      POSTGRES_USER: budget
+      POSTGRES_PASSWORD: budget
+    volumes:
+      - pgdata:/var/lib/postgresql/data
+
+  budget-commun:
+    build:
+      context: .
+      dockerfile: backend/Dockerfile
+    container_name: budget-commun
+    restart: unless-stopped
+    ports:
+      - "3456:3000"
+    depends_on:
+      - db
+    environment:
+      - NODE_ENV=production
+      - DATABASE_URL=postgres://budget:budget@db:5432/budget
+
+volumes:
+  pgdata: