M2b：删除旧 chat 体系——线性会话/叩心/情绪/纪念日模型与页面退役（迁移 003 双向验证），runs 去会话外键，测试全量修剪

backend/app/services/runtime.py

@@ -28,14 +28,12 @@ async def create_run(
     session: AsyncSession,
     *,
     character_id: str,
-    session_id: str | None,
     model_hint: str,
     goal: str = "回复用户消息",
     origin: str = "chat",
 ) -> Run:
     run = Run(
         character_id=character_id,
-        session_id=session_id,
         status="running",
         goal=goal,
         origin=origin,
@@ -175,17 +173,15 @@ async def get_run_response(run_id: str) -> RunResponse:
 async def list_runs_response(
     *,
     character_id: str | None = None,
-    session_id: str | None = None,
     status: str | None = None,
     page: int = 1,
     page_size: int = 20,
 ) -> Page[RunResponse]:
-    """Run 列表（按创建时间倒序）；可选按人物/会话/状态过滤。归档页运行时间河数据源。"""
+    """Run 列表（按创建时间倒序）；可选按人物/状态过滤。归档页运行时间河数据源。"""
     async with AsyncSessionLocal() as session:
         items, total = await runtime_repo.list_runs(
             session,
             character_id=character_id,
-            session_id=session_id,
             status=status,
             page=page,
             page_size=page_size,