Update bot logic, Dockerfile and docker-compose.yml

docker-compose.yml

@@ -0,0 +1,36 @@
+version: "3.8"
+
+services:
+  # PostgreSQL 数据库
+  db:
+    image: postgres:16-alpine
+    container_name: gpt-team-db
+    restart: always
+    environment:
+      POSTGRES_USER: postgres
+      POSTGRES_PASSWORD: postgres
+      POSTGRES_DB: teamhelper
+    volumes:
+      - pgdata:/var/lib/postgresql/data
+    healthcheck:
+      test: [ "CMD-SHELL", "pg_isready -U postgres" ]
+      interval: 5s
+      timeout: 5s
+      retries: 5
+
+  # Go Helper Bot
+  bot:
+    build: .
+    container_name: gpt-team-bot
+    restart: always
+    depends_on:
+      db:
+        condition: service_healthy
+    env_file:
+      - .env
+    environment:
+      # 覆盖 .env 中的数据库连接串，指向 docker 内部的 db 服务
+      DATABASE_URL: postgres://postgres:postgres@db:5432/teamhelper?sslmode=disable
+
+volumes:
+  pgdata: