feat: 手术视频消耗、待确认与持久化改造

- 新增 Alembic 初始迁移、领域明细模型及归档持久化与重试链路\n- 拆分视频会话注册表、分类处理、推理时间窗聚合与流处理\n- 消耗日志：TSV/Markdown 含 top2/top3；item_id 优先产品编码；待确认记「待确认」行，语音确认后落正式行并更新汇总\n- 待确认时内存/DB 明细为占位行，确认后替换；拒绝时移除占位\n- 分类 probs 先 detach/cpu 再转 NumPy，修复 MPS/CUDA 上推理被静默跳过\n- 补充集成测试、归档与设备张量等单测

Made-with: Cursor

alembic/env.py

@@ -0,0 +1,66 @@
+"""Alembic environment.
+
+生产请用 `alembic upgrade head`；开发/测试可让 ``Settings.auto_create_schema`` 调用
+``init_db_schema()``。本文件读取 `app.config.settings`，把 asyncpg URL 转为同步
+`psycopg` URL 供 Alembic 使用（仅迁移期间）。
+"""
+
+from __future__ import annotations
+
+from logging.config import fileConfig
+
+from alembic import context
+from sqlalchemy import engine_from_config, pool
+
+from app.config import settings
+import app.db.models  # noqa: F401 - register ORM tables on Base.metadata
+from app.db.base import Base
+
+
+alembic_config = context.config
+
+if alembic_config.config_file_name is not None:
+    fileConfig(alembic_config.config_file_name)
+
+target_metadata = Base.metadata
+
+
+def _sync_database_url() -> str:
+    """把 asyncpg URL 转为同步 psycopg2 URL，避免 Alembic 强依赖 async 驱动。"""
+    url = settings.sqlalchemy_database_url
+    return url.replace("postgresql+asyncpg://", "postgresql+psycopg://", 1)
+
+
+def run_migrations_offline() -> None:
+    context.configure(
+        url=_sync_database_url(),
+        target_metadata=target_metadata,
+        literal_binds=True,
+        dialect_opts={"paramstyle": "named"},
+    )
+    with context.begin_transaction():
+        context.run_migrations()
+
+
+def run_migrations_online() -> None:
+    config_section = alembic_config.get_section(alembic_config.config_ini_section) or {}
+    config_section["sqlalchemy.url"] = _sync_database_url()
+    connectable = engine_from_config(
+        config_section,
+        prefix="sqlalchemy.",
+        poolclass=pool.NullPool,
+    )
+    with connectable.connect() as connection:
+        context.configure(
+            connection=connection,
+            target_metadata=target_metadata,
+            compare_type=True,
+        )
+        with context.begin_transaction():
+            context.run_migrations()
+
+
+if context.is_offline_mode():
+    run_migrations_offline()
+else:
+    run_migrations_online()