feat(platform): close AI expense value loop

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

server/tests/test_expense_claim_risk_gate.py

@@ -180,6 +180,7 @@ def test_blocked_approval_rolls_back_action_ledger_and_claim_mutation() -> None:
             ExpenseClaimService(db).approve_claim(
                 claim.id,
                 CurrentUserContext(
+                    tenant_id="default",
                     username=manager.email,
                     name=manager.name,
                     role_codes=["manager"],