fix: restrict application linking for reimbursement drafts

web/tests/travel-reimbursement-guided-flow.test.mjs

@@ -254,7 +254,7 @@ test('guided reimbursement requires application selection for travel and enterta
         reason: '客户招待沟通项目',
         location: '武汉',
         amount: 600,
-        status: 'submitted',
+        status: 'approved',
         created_at: '2026-05-21T08:00:00Z'
       },
       {
@@ -265,6 +265,44 @@ test('guided reimbursement requires application selection for travel and enterta
         reason: '草稿出差申请',
         status: 'draft'
       },
+      {
+        id: 'app-submitted',
+        claim_no: 'AP-202605-005',
+        employee_name: '张小青',
+        expense_type: 'travel_application',
+        reason: '审批中的出差申请',
+        status: 'submitted'
+      },
+      {
+        id: 'app-archived-stale-key',
+        claim_no: 'AP-202605-007',
+        employee_name: '张小青',
+        expense_type: 'travel_application',
+        reason: '已归档申请单',
+        status: 'archived',
+        approvalKey: 'completed'
+      },
+      {
+        id: 'app-linked',
+        claim_no: 'AP-202605-006',
+        employee_name: '张小青',
+        expense_type: 'travel_application',
+        reason: '已生成报销草稿的出差申请',
+        status: 'approved'
+      },
+      {
+        id: 're-linked-draft',
+        claim_no: 'RE-202605-006',
+        employee_name: '张小青',
+        expense_type: 'travel',
+        reason: '已关联申请单的报销草稿',
+        status: 'draft',
+        risk_flags_json: [{
+          source: 'application_link',
+          application_claim_id: 'app-linked',
+          application_claim_no: 'AP-202605-006'
+        }]
+      },
       {
         id: 'app-other-user',
         claim_no: 'AP-202605-004',