将 Demo 录制收敛为三条独立链路，并重做联调台 UI。

移除 demo_orch 统一编排，改为 recording_demo 与 live/simulated 服务；客户端拆分为静态资源，以模式卡片与 chip 耗材覆盖三链路联调，并同步测试与文档。

Co-authored-by: Cursor <cursoragent@cursor.com>

backend/tests/test_fastapi_algorithm_subprocess.py

@@ -1,7 +1,7 @@
 """FastAPI → 算法子进程调用链单元测试。
 
 覆盖两条生产路径：
-1. ``POST /internal/demo/video-batch-surgery`` → ``VideoBatchRunner`` → ``subprocess.run``（reference bundle ``main.py``）
+1. ``POST /internal/demo/offline-batch`` → ``VideoBatchRunner`` → ``subprocess.run``（reference bundle ``main.py``）
 2. ``POST /client/surgeries/start`` → ``CameraSessionManager`` → ``asyncio.create_subprocess_exec``（``python -m app.algorithm_runner``）
 """
 
@@ -22,7 +22,7 @@ from httpx import ASGITransport, AsyncClient
 from app.api import router as api_router
 from app.config import Settings
 from app.dependencies import build_container, get_surgery_pipeline, get_voice_terminal_hub
-from app.routers import demo_orch
+from app.routers import recording_demo
 from app.services.video.session_manager import CameraSessionManager
 from app.services.video_batch_runner import VideoBatchRunner, build_reference_command
 from tests.test_video_batch_runner import _complete_result_tsv_body, _write_minimal_reference_bundle
@@ -65,7 +65,7 @@ def test_video_batch_endpoint_invokes_reference_bundle_subprocess(
     reference_bundle: Path,
     sqlite_session_factory,
 ) -> None:
-    monkeypatch.setattr(demo_orch.settings, "demo_orchestrator_enabled", True)
+    monkeypatch.setattr(recording_demo.settings, "demo_orchestrator_enabled", True)
     monkeypatch.setattr(
         "app.services.video_batch_runner.resolve_reference_bundle_dir",
         lambda _override=None: reference_bundle.resolve(),
@@ -75,7 +75,7 @@ def test_video_batch_endpoint_invokes_reference_bundle_subprocess(
         lambda _bundle: True,
     )
     monkeypatch.setattr(
-        demo_orch,
+        recording_demo,
         "VideoBatchRunner",
         lambda: VideoBatchRunner(
             bundle_dir=reference_bundle,
@@ -89,14 +89,14 @@ def test_video_batch_endpoint_invokes_reference_bundle_subprocess(
         _fake_reference_subprocess_run(captured),
     )
 
-    container = build_container(demo_orch.settings, session_factory=sqlite_session_factory)
+    container = build_container(recording_demo.settings, session_factory=sqlite_session_factory)
     app = FastAPI()
-    app.include_router(demo_orch.router)
+    app.include_router(recording_demo.router)
     app.dependency_overrides[get_surgery_pipeline] = lambda: container.surgery_pipeline
 
     client = TestClient(app)
     res = client.post(
-        "/internal/demo/video-batch-surgery",
+        "/internal/demo/offline-batch",
         data={
             "surgery_id": "100001",
             "candidate_consumables_json": '["耗材1"]',
@@ -198,7 +198,10 @@ async def test_start_surgery_endpoint_spawns_algorithm_runner_subprocess(
     async def _noop_voice_assign(*args: Any, **kwargs: Any) -> None:
         return None
 
-    monkeypatch.setattr("app.api.assign_voice_terminal_after_recording_started", _noop_voice_assign)
+    monkeypatch.setattr(
+        "app.services.recording_live.assign_voice_terminal_after_recording_started",
+        _noop_voice_assign,
+    )
 
     app = FastAPI()
     app.include_router(api_router)