feat(platform): close AI expense value loop

Add tenant-safe value, telemetry, connector, commercial, and production-readiness foundations.

server/tests/test_approval_task_backfill.py

@@ -65,6 +65,7 @@ def _persist_claim(
     manager = (
         Employee(
             id=f"manager-{suffix}",
+            tenant_id=tenant_id,
             employee_no=f"M-{suffix}",
             name=f"经理{suffix}",
             email=f"manager-{suffix}@example.com",
@@ -74,6 +75,7 @@ def _persist_claim(
     )
     employee = Employee(
         id=f"employee-{suffix}",
+        tenant_id=tenant_id,
         employee_no=f"E-{suffix}",
         name=f"员工{suffix}",
         email=f"employee-{suffix}@example.com",
@@ -81,6 +83,7 @@ def _persist_claim(
     )
     claim = ExpenseClaim(
         id=f"claim-{suffix}",
+        tenant_id=tenant_id,
         claim_no=f"RE-BACKFILL-{suffix}",
         employee=employee,
         employee_name=employee.name,
@@ -326,6 +329,7 @@ def test_entered_at_fallback_order_is_explicit_and_deterministic() -> None:
     submitted_at = datetime(2026, 7, 14, 10, 0, tzinfo=UTC)
     claim = ExpenseClaim(
         id="claim-time-fallback",
+        tenant_id="tenant-a",
         claim_no="RE-TIME-FALLBACK",
         employee_name="张三",
         department_name="市场部",