feat: add warning card for db key

src/wechat_decrypt_tool/routers/keys.py

@@ -3,6 +3,7 @@ from typing import Optional
 from fastapi import APIRouter
 
 from ..key_store import get_account_keys_from_store
+from ..key_service import get_db_key_workflow
 from ..media_helpers import _load_media_keys, _resolve_account_dir
 from ..path_fix import PathFixRoute
 

src/wechat_decrypt_tool/routers/wechat_detection.py

@@ -1,5 +1,5 @@
 from typing import Optional
-
+import psutil
 from fastapi import APIRouter
 
 from ..logging_config import get_logger
@@ -71,3 +71,49 @@ async def detect_current_account(data_root_path: Optional[str] = None):
             'error': str(e),
             'data': None,
         }
+
+
+@router.get("/api/wechat/status", summary="检查微信运行状态")
+async def check_wechat_status():
+    """
+    检查系统中是否有 Weixin.exe 或 WeChat.exe 进程在运行
+    返回: status=0 成功, wx_status={is_running: bool, pid: int, ...}
+    """
+    process_name_targets = ["Weixin.exe", "WeChat.exe"]
+
+    wx_status = {
+        "is_running": False,
+        "pid": None,
+        "exe_path": None,
+        "memory_usage_mb": 0.0
+    }
+
+    try:
+        for proc in psutil.process_iter(['pid', 'name', 'exe', 'memory_info']):
+            try:
+                if proc.info['name'] and proc.info['name'] in process_name_targets:
+                    wx_status["is_running"] = True
+                    wx_status["pid"] = proc.info['pid']
+                    wx_status["exe_path"] = proc.info['exe']
+
+                    mem = proc.info['memory_info']
+                    if mem:
+                        wx_status["memory_usage_mb"] = round(mem.rss / (1024 * 1024), 2)
+
+                    break
+            except (psutil.NoSuchProcess, psutil.AccessDenied, psutil.ZombieProcess):
+                continue
+
+        return {
+            "status": 0,
+            "errmsg": "ok",
+            "wx_status": wx_status
+        }
+
+    except Exception as e:
+        # 即使出错也返回 JSON，但 status 非 0
+        return {
+            "status": -1,
+            "errmsg": f"检查进程失败: {str(e)}",
+            "wx_status": wx_status
+        }