feat: Refactor DpmOverlays to use ShowCard for rendering cards and add ToolStatusToast for operation status notifications

- Moved card rendering logic from DpmOverlays to a new ShowCard component for better reusability.
- Introduced ToolStatusToast to display real-time operation statuses in the top right corner.
- Updated PageHeader to conditionally render credits based on the current path.
- Modified PromptPanel to change tool names and update prompt titles.
- Enhanced ScreenLayout to include ToolStatusToast.
- Updated styles for new components and adjusted existing styles for consistency.
- Implemented statusBus utility for dispatching tool status events.
- Updated useMqttControl to integrate tool status notifications during navigation and card display actions.

backend/app/tools.py

@@ -12,6 +12,12 @@ from datetime import datetime
 log = logging.getLogger("dpm.tools")
 
 
+def _trunc(s, n=800):
+    """日志用截断：超长内容只留前 n 字并标注总长。"""
+    s = str(s)
+    return s if len(s) <= n else s[:n] + f"...（共{len(s)}字）"
+
+
 # ── 工具实现 ────────────────────────────────────────────────────────────
 
 def _get_park_overview(args):
@@ -127,7 +133,8 @@ def exec_tool(name: str, args: dict):
         return json.dumps({"error": f"未知工具: {name}"}, ensure_ascii=False)
     try:
         result = t["fn"](args or {})
-        log.info("tools: %s args=%s -> %s", name, json.dumps(args, ensure_ascii=False)[:120], str(result)[:120])
+        log.info("tools: 执行工具 %s args=%s", name, json.dumps(args, ensure_ascii=False))
+        log.info("tools:   结果 -> %s", _trunc(result, 1000))
         return result
     except Exception as e:  # noqa: BLE001
         log.error("tools: %s 执行失败 %s", name, e, exc_info=True)