add docker setup for db and dev server

docker-compose.yml

@@ -0,0 +1,31 @@
+services:
+  db:
+    image: pgvector/pgvector:pg17
+    container_name: postgres
+    ports:
+      - "5432:5432"
+    environment:
+      - POSTGRES_USER=${POSTGRES_USER}
+      - POSTGRES_PASSWORD=${POSTGRES_PASSWORD}
+      - POSTGRES_DB=${POSTGRES_DB}
+    volumes:
+      - postgres_data:/var/lib/postgresql/data
+    restart: unless-stopped
+
+  app:
+    build:
+      context: .
+      dockerfile: Dockerfile.dev
+    container_name: socialdb
+    ports:
+      - "3000:3000"
+    depends_on:
+      - db
+    environment:
+      - POSTGRES_USER=${POSTGRES_USER}
+      - POSTGRES_PASSWORD=${POSTGRES_PASSWORD}
+      - POSTGRES_DB=${POSTGRES_DB}
+    restart: unless-stopped
+
+volumes:
+  postgres_data: