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/tests/unit/test_param_registry.py

@@ -23,30 +23,35 @@ from app.services.param_registry import (
 # + V7 调整单开关；V8 撤试用期统一工资参数 #16、增经理个人户基数开关 #12；
 # V10 增工作台预警规则三项 #10）
 EXPECTED_CODES = {
-    "coefficient.personal.first", "coefficient.personal.start", "coefficient.personal.slope",
-    "coefficient.personal.floor", "coefficient.personal.boundary",
-    "salesperson.rate.start",
-    "salesperson.rate.slope",
-    "salesperson.rate.floor",
-    "salesperson.days.boundary",
-    "manager.share.team",
-    "manager.share.company",
+    "approval.adjustment.enabled",
+    "approval.monthly_settlement.enabled",
+    "approval.secondary_allocation.enabled",
+    "barter.discount",
+    "coefficient.personal.boundary",
+    "coefficient.personal.first",
+    "coefficient.personal.floor",
+    "coefficient.personal.slope",
+    "coefficient.personal.start",
     "enterprise.rate",
     "info.rate",
-    "prepay.rate",
-    "barter.discount",
+    "manager.personal.included",
+    "manager.share.company",
+    "manager.share.team",
     "payment.start.ratio",
     "payment.weight.mode",
-    "product.threshold",
-    "salary.basic.mode",
+    "prepay.rate",
     "probation.annual.threshold",
-    "approval.secondary_allocation.enabled",
-    "approval.monthly_settlement.enabled",
-    "approval.adjustment.enabled",
-    "manager.personal.included",
-    "warning.enabled",
-    "warning.receipt.overdue.days",
+    "product.threshold",
+    "receipt.confirmation.enabled",
+    "salary.basic.mode",
+    "salesperson.days.boundary",
+    "salesperson.rate.floor",
+    "salesperson.rate.slope",
+    "salesperson.rate.start",
     "warning.approval.timeout.days",
+    "warning.enabled",
+    "warning.receipt.overdue.days"
+
 }
 
 
@@ -87,7 +92,7 @@ class TestRegistry:
     """注册表元数据完整性（与迁移种子同源）。"""
 
     def test_注册表共27项(self) -> None:
-        assert len(PARAM_REGISTRY) == 27
+        assert len(PARAM_REGISTRY) == 28
 
     def test_编码集合与迁移种子一致(self) -> None:
         assert set(PARAM_REGISTRY) == EXPECTED_CODES