feat(T+): 完成数据贯通与自动接入闭环

打通 T+ 快照、业务、发货、回款和核算准备链路，保留来源差异并提供待补状态。
新增业务自动接入任务、跨平台读取服务托管、权限复核、来源关联和前端核对页面。
补充迁移、隔离集成测试、浏览器模拟验收及角色授权边界修复。

backend/app/api/v1/system/tplus.py

@@ -18,8 +18,10 @@ from app.schemas.tplus import (
     TPlusErrorQuery,
     TPlusOverviewOut,
     TPlusRetryIn,
+    TPlusRuntimeOut,
+    TPlusRuntimeUpdate,
 )
-from app.services.tplus import automation_config, query_service, task_service
+from app.services.tplus import automation_config, query_service, runtime_control, task_service
 
 router = APIRouter(prefix="/tplus", tags=["系统管理 · T+ 数据同步"])
 router.include_router(workbench_router)
@@ -39,6 +41,17 @@ def update_automation(session: DbSession, admin: PayrollWriter, meta: RequestMet
     return ok(automation_config.save(session, payload, task_service.TaskActor(admin, meta)))
 
 
+@router.get("/runtime", response_model=ApiResponse[TPlusRuntimeOut])
+def runtime_status(session: DbSession, _: WorkbenchReader):
+    return ok(runtime_control.overview(session))
+
+
+@router.put("/runtime", response_model=ApiResponse[TPlusRuntimeOut])
+def update_runtime(session: DbSession, admin: PayrollWriter, meta: RequestMetaDep,
+                   payload: TPlusRuntimeUpdate):
+    return ok(runtime_control.save(session, payload, task_service.TaskActor(admin, meta)))
+
+
 @router.get("/batches", response_model=ApiResponse[PageResult[TPlusBatchOut]])
 def batches(session: DbSession, _: WorkbenchReader, query: Annotated[TPlusBatchQuery, Query()]):
     """分页查询批次元数据。"""

backend/app/api/v1/system/tplus_workbench.py

@@ -7,12 +7,46 @@ from starlette.responses import StreamingResponse
 
 from app.api.deps import DbSession, PayrollWriter, WorkbenchReader
 from app.core.response import ApiResponse, PageQuery, PageResult, ok
-from app.schemas.tplus_workbench import FactIn, SourceChoiceQuery, WorkCreateIn, WorkQuery
-from app.services.tplus import workbench
+from app.schemas.tplus_business_sync import BusinessSyncRun, BusinessSyncUpdate, SyncRange
+from app.schemas.tplus_workbench import (
+    CorrectionPairIn,
+    FactIn,
+    SourceChoiceQuery,
+    WorkCreateIn,
+    WorkQuery,
+)
+from app.services.tplus import business_sync_control, workbench
 
 router = APIRouter()
 RunNo = Annotated[str, Path(pattern=r"^[A-Za-z0-9_-]+$", max_length=32)]
 
+@router.get("/business-sync")
+def business_sync_config(session: DbSession, _: WorkbenchReader):
+    return ok(business_sync_control.configuration(session))
+
+
+@router.put("/business-sync")
+def business_sync_save(session: DbSession, actor: PayrollWriter, payload: BusinessSyncUpdate):
+    return ok(business_sync_control.save(session, payload, actor.id))
+
+
+@router.post("/business-sync/preview")
+def business_sync_preview(session: DbSession, _: PayrollWriter, payload: SyncRange):
+    return ok(business_sync_control.readonly_preview(session, payload.start_date))
+
+
+@router.post("/business-sync/runs")
+def business_sync_run(session: DbSession, actor: PayrollWriter, payload: BusinessSyncRun):
+    return ok(business_sync_control.queue(session, actor.id, payload.start_date, payload.request_key))
+
+
+@router.post("/correction-pairs")
+def save_correction_pair(session: DbSession, actor: PayrollWriter, payload: CorrectionPairIn):
+    """成对排除转客户更正单，将实际回款关联原业务，保留实际到账日。"""
+    from app.services.tplus.corrections import save_pair
+
+    return ok(save_pair(session, payload, actor.id))
+
 
 @router.get("/facts", response_model=ApiResponse[PageResult[dict]])
 def facts(session: DbSession, _: WorkbenchReader, query: Annotated[WorkQuery, Query()]):