feat: 配置写死与 baked 模块，Alembic 建表，百度仅 BAIDU_*

- 新增 app/baked/algorithm|pipeline，非部署参数不再走 env；Settings 保留 DB/HTTP/RTSP/海康/百度/MinIO/Demo
- 移除 init_db_schema 与 reload 配置；main 仅 check_database；start*.sh 在 uvicorn 前执行 alembic upgrade head
- 依赖 psycopg[binary] 供 Alembic 同步 URL；alembic/env 注释与预发清单更新
- 撕段门控消费管线、各视频/语音/归档调用改为 baked
- 百度环境变量仅 BAIDU_APP_ID、BAIDU_API_KEY、BAIDU_SECRET_KEY 与 BAIDU_* 超时/ASR；人脸脚本与 baidu_speech 文案同步
- 全量单测与 .env.example 更新；.gitignore 忽略 refs/（本地权重/视频不入库）

Made-with: Cursor

app/services/video/stream_worker.py

@@ -16,7 +16,7 @@ from typing import Awaitable, Callable
 
 from loguru import logger
 
-from app.config import Settings
+from app.baked import pipeline as bp
 from app.services.video.rtsp_capture import RtspCapture
 
 
@@ -38,12 +38,10 @@ class CameraStreamWorker:
     def __init__(
         self,
         *,
-        settings: Settings,
         surgery_id: str,
         camera_id: str,
         url: str,
     ) -> None:
-        self._s = settings
         self._surgery_id = surgery_id
         self._camera_id = camera_id
         self._url = url
@@ -65,7 +63,7 @@ class CameraStreamWorker:
                 if cap is None:
                     try:
                         cap = RtspCapture(
-                            self._url, open_timeout_sec=self._s.video_open_timeout_sec
+                            self._url, open_timeout_sec=bp.VIDEO_OPEN_TIMEOUT_SEC
                         )
                         await asyncio.to_thread(cap.open)
                         consecutive_failures = 0
@@ -89,7 +87,7 @@ class CameraStreamWorker:
                         if cap is not None:
                             await asyncio.to_thread(cap.release)
                             cap = None
-                        await asyncio.sleep(self._s.video_reconnect_backoff_seconds)
+                        await asyncio.sleep(bp.VIDEO_RECONNECT_BACKOFF_SECONDS)
                         continue
 
                 ok, frame = await asyncio.to_thread(cap.read)
@@ -97,7 +95,7 @@ class CameraStreamWorker:
                     consecutive_failures += 1
                     if (
                         consecutive_failures
-                        >= self._s.video_read_failure_reconnect_threshold
+                        >= bp.VIDEO_READ_FAILURE_RECONNECT_THRESHOLD
                     ):
                         logger.warning(
                             "RTSP reconnect camera={} surgery={} url={} after {} read failures",
@@ -109,7 +107,7 @@ class CameraStreamWorker:
                         await asyncio.to_thread(cap.release)
                         cap = None
                         consecutive_failures = 0
-                        await asyncio.sleep(self._s.video_reconnect_backoff_seconds)
+                        await asyncio.sleep(bp.VIDEO_RECONNECT_BACKOFF_SECONDS)
                     else:
                         await asyncio.sleep(0.05)
                     continue