更新 Gitea、HedgeDoc、Homepage、MinIO、Uptime Kuma 的 Docker Compose 配置，添加 Traefik 代理和环境变量，新增 HedgeDoc 的 .gitignore 文件

gitea/compose.yml

@@ -1,16 +1,37 @@
 services:
+  db:
+    image: postgres:15
+    restart: always
+    env_file: ../.env
+    volumes:
+      - ./docker-entrypoint-initdb.d:/docker-entrypoint-initdb.d
+      - ./db_data:/var/lib/postgresql/data
+    networks:
+      - homelab_net
+
   gitea:
     image: gitea/gitea:latest
     container_name: gitea
     restart: unless-stopped
+    env_file: ../.env
     environment:
-      - USER_UID=1000
-      - USER_GID=1000
+      USER_UID: 1000
+      USER_GID: 1000
+      GITEA__database__DB_TYPE: postgres
+      GITEA__database__HOST: db:5432
+      GITEA__database__NAME: giteadb
+      GITEA__database__USER: gitea
+      GITEA__server__SSH_PORT: 22
     volumes:
       - ./data:/data
+    # 保留 SSH 端口以便通过 SSH 推送代码（可选），移除 HTTP 宿主端口，由 Traefik 暴露
     ports:
-      - "3001:3000"
+      - "3004:3000"
       - "222:22"
+    labels:
+      - "traefik.enable=true"
+      - "traefik.http.routers.gitea.rule=Host(`gitea.homelab`)"
+      - "traefik.http.services.gitea.loadbalancer.server.port=3000"
     networks:
       - homelab_net