fix: DOCKER_RESTART 改走 SSH 跳板（110→188），修復 AIOps AutoHeal 閉環

根本原因：scheduler 容器內無 Docker socket，直接執行 docker restart 失敗。
修正：使用 SSHJumpExecutor（wooo@110 → ollama@188）透過跳板執行 docker restart。
SSH key：/app/config/autoheal_id_ed25519（rw mount 已存在）。
同步關閉 9 筆 2026-04-19 過期 DNS_FAIL incidents（根因已由網路修復解決）。

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

services/auto_heal_service.py

@@ -306,28 +306,45 @@ class AutoHealService:
                     "action": "DOCKER_RESTART",
                     "message": "Playbook missing 'container' in action_params",
                 }
-            # 安全：命令為靜態 list，container 通過驗證正則
-            try:
-                safe_container = re.sub(r'[^a-zA-Z0-9._-]', '', container)
-                if safe_container != container:
-                    raise ValueError(f"Container name contains unsafe chars: {container!r}")
-                cmd = self._DOCKER_RESTART_CMD + [safe_container]
-                result = subprocess.run(
-                    cmd, capture_output=True, text=True, timeout=60
-                )
-                success = result.returncode == 0
+            safe_container = re.sub(r'[^a-zA-Z0-9._-]', '', container)
+            if safe_container != container:
+                return {"success": False, "action": "DOCKER_RESTART",
+                        "message": f"Container name contains unsafe chars: {container!r}"}
+
+            # 透過 SSH 跳板（110→188）執行 docker restart（ADR-013 §DOCKER_RESTART）
+            # 容器內無 Docker socket，必須 SSH 到宿主機執行
+            key_path = os.path.join(os.path.dirname(__file__), '..', 'config', 'autoheal_id_ed25519')
+            key_path = os.path.normpath(key_path)
+            if not os.path.exists(key_path):
+                logger.warning("[AutoHeal] SSH key 不存在: %s，降級為 ALERT_ONLY", key_path)
                 return {
-                    "success": success,
+                    "success": False,
                     "action": "DOCKER_RESTART",
-                    "message": (
-                        f"Restarted {safe_container}"
-                        if success else
-                        f"Restart failed: {result.stderr[:200]}"
-                    ),
+                    "message": f"SSH key 不存在: {key_path}，請確認 config/autoheal_id_ed25519 已掛載",
                 }
+            executor = SSHJumpExecutor(
+                jump_host="192.168.0.110",
+                jump_user="wooo",
+                jump_key_path=key_path,
+                jump_connect_timeout=10,
+                jump_command_timeout=60,
+            )
+            try:
+                result = executor.execute_command(
+                    target_host="192.168.0.188",
+                    target_user="ollama",
+                    command=["docker", "restart", safe_container],
+                )
+                success = result.get("success", False)
+                msg = (
+                    f"容器 {safe_container} 重啟成功（SSH 跳板）"
+                    if success else
+                    f"容器重啟失敗: {result.get('stderr','')[:200]}"
+                )
+                return {"success": success, "action": "DOCKER_RESTART", "message": msg}
             except Exception as e:
-                logger.error("[AutoHeal] DOCKER_RESTART failed: %s", e)
-                return {"success": False, "action": "DOCKER_RESTART", "message": str(e)}
+                logger.error("[AutoHeal] DOCKER_RESTART SSH 失敗: %s", e)
+                return {"success": False, "action": "DOCKER_RESTART", "message": f"SSH 執行例外: {e}"}
 
         if action_type == "SSH_CMD":
             # SSH_CMD：命令必須以 list 形式存在 action_params['argv']