docs: pin v0.2.0 production image and add web healthcheck

README.md

@@ -60,7 +60,7 @@ am-deduper watch /music/AllMusic --db /data/dedupe.db --l2
 ```text
 NAS
 ├── Gitea Registry
-│   └── gitea.king.nyc.mn/openclaw/am-deduper:latest
+│   └── gitea.king.nyc.mn/openclaw/am-deduper:v0.2.0
 ├── AllMusic/
 │   ├── admin/
 │   ├── alice/
@@ -138,10 +138,18 @@ docker pull gitea.king.nyc.mn/openclaw/am-deduper:latest
 docker compose up -d
 ```
 
-当前生产镜像：
+当前生产镜像（推荐固定版本）：
 
 ```text
-gitea.king.nyc.mn/openclaw/am-deduper:latest
+gitea.king.nyc.mn/openclaw/am-deduper:v0.2.0
+```
+
+兼容自动跟随最新版：`gitea.king.nyc.mn/openclaw/am-deduper:latest`
+
+本次 v0.2.0 镜像 digest：
+
+```text
+sha256:6c3854efc10d19c56c4e9d442180143d8d30ca3a5b2496ca10169f0a78352a65
 ```
 
 wjyhk 已验证推送成功；当前镜像 digest：

docker-compose.yml

@@ -36,4 +36,10 @@ services:
       - /vol2/1000/Docker/am-deduper/data:/data
     ports:
       - "18080:8080"
+    healthcheck:
+      test: ["CMD", "python", "-c", "import urllib.request; urllib.request.urlopen(\"http://127.0.0.1:8080/\", timeout=3)"]
+      interval: 30s
+      timeout: 5s
+      retries: 3
+      start_period: 10s
     stop_grace_period: 10s