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/routers.py

@@ -111,23 +111,34 @@ async def get_settings():
 
 
 @router.get("/api/config")
-async def runtime_config():
-    """运行配置（供前端启动引导覆盖）：MQTT 地址/账号、API 基址
+async def runtime_config(request: Request):
+    """运行配置（供前端启动引导覆盖）：MQTT 地址/账号、API 基址、语音地址
        —— 打包部署时展播端从后端拉取，避免构建期写死的局域网 IP 失效
     """
     ws = settings.MQTT_WS_URL
-    # 从 ws://host:port/mqtt 中提取 broker 主机
+    # 后端可达主机：优先取客户端实际访问本服务的 Host（与 api_base 一致），
+    # 回退到从 MQTT broker 地址提取。
     host = "192.168.1.9"
     try:
         host = ws.split("://", 1)[1].split(":", 1)[0]
     except Exception:  # noqa: BLE001
         pass
+    try:
+        rh = (request.headers.get("host") or "").split(":")[0]
+        if rh:
+            host = rh
+    except Exception:  # noqa: BLE001
+        pass
+    # s2s 与后端同机启动 → voice_url 默认跟随后端主机；显式 DPM_VOICE_WS 优先
+    voice_url = settings.S2S_WS_URL
+    if not settings.VOICE_WS and host:
+        voice_url = f"ws://{host}:{settings.S2S_PORT}/v1/realtime"
     return {
         "ok": True,
         "mqtt_url": ws,
         "mqtt_username": settings.MQTT_USERNAME or "",
         "mqtt_password": settings.MQTT_PASSWORD or "",
-        "voice_url": settings.S2S_WS_URL,
+        "voice_url": voice_url,
         "api_base": f"http://{host}:{settings.PORT}",
         "broker_host": host,
     }
@@ -418,7 +429,7 @@ AI_GROUPED_QUESTIONS = [
 ]
 
 AI_OPC_TOOLS = [
-    "DeepSeek-V3", "通义千问", "ChatGPT", "豆包",
+    "DeepSeek", "通义千问", "ChatGPT", "豆包",
     "Midjourney", "Stable Diffusion", "剪映", "Notion AI",
     "WPS AI", "GitHub Copilot",
 ]
@@ -550,6 +561,28 @@ def vision_frame(body: VisionFrameBody):
     return predict_base64(img_b64)
 
 
+class VisionLlmBody(BaseModel):
+    image: str = ""      # JPEG base64
+    prompt: str = ""     # 可选，自定义识别指令
+
+@router.post("/api/vision/llm")
+def vision_llm(body: VisionLlmBody):
+    """对话开场画面识别：多模态 LLM（qwen3-vl-flash）识别人数/性别，返回 {ok, people, males, females, desc}。"""
+    img = (body.image or "").strip()
+    if not img:
+        return {"ok": False, "error": "missing image"}
+    try:
+        from .vision_llm import analyze_scene
+        result = analyze_scene(img, body.prompt)
+        log.info("api: /api/vision/llm -> people=%s males=%s females=%s desc=%s",
+                 result.get("people"), result.get("males"), result.get("females"),
+                 (result.get("desc") or "")[:60])
+        return result
+    except Exception as e:  # noqa: BLE001
+        log.warning("vision llm 失败: %s", e)
+        return {"ok": False, "error": str(e)}
+
+
 # ==================== 智能体工具调用 + 知识库 ====================
 class ToolsExecBody(BaseModel):
     name: str = ""
@@ -563,6 +596,9 @@ def tools_exec(body: ToolsExecBody):
         return {"ok": False, "error": "missing tool name"}
     from .tools import exec_tool
     result = exec_tool(name, body.args or {})
+    log.info("api: /api/tools/exec name=%s args=%s result=%s", name,
+             json.dumps(body.args or {}, ensure_ascii=False)[:300],
+             str(result)[:400])
     return {"ok": True, "result": result}
 
 @router.get("/api/kb/brief")
@@ -570,7 +606,9 @@ def kb_brief(max_chars: int = 1200):
     """园区知识摘要（前端拼进对话 instructions）"""
     try:
         from .rag import brief
-        return {"ok": True, "brief": brief(max_chars=max_chars)}
+        result = brief(max_chars=max_chars)
+        log.info("api: /api/kb/brief max_chars=%d -> %s", max_chars, str(result)[:300])
+        return {"ok": True, "brief": result}
     except Exception as e:  # noqa: BLE001
         log.warning("kb brief 失败: %s", e)
         return {"ok": False, "error": str(e)}
@@ -583,6 +621,7 @@ def kb_retrieve(q: str = "", top_k: int = 3):
     try:
         from .rag import retrieve
         chunks = retrieve(q, top_k=top_k)
+        log.info("api: /api/kb/retrieve q=%s top_k=%d -> %d 段", q[:100], top_k, len(chunks))
         return {"ok": True, "chunks": chunks}
     except Exception as e:  # noqa: BLE001
         log.warning("kb retrieve 失败: %s", e)
@@ -593,7 +632,10 @@ def s2s_instructions():
     """语音助手基础提示词（服务端统一组装：配置提示词 + 园区知识库）"""
     try:
         from .rag import build_instructions
-        return {"ok": True, "instructions": build_instructions()}
+        instructions = build_instructions()
+        log.info("api: /api/s2s/instructions -> 系统提示词（%d 字）=%s",
+                 len(instructions), instructions[:600])
+        return {"ok": True, "instructions": instructions}
     except Exception as e:  # noqa: BLE001
         log.warning("s2s instructions 构建失败: %s", e)
         return {"ok": False, "error": str(e)}