feat(server): 重构费用报销服务，优化报销单创建和审批流程逻辑

server/tests/test_reimbursement_endpoints.py

@@ -154,6 +154,8 @@ def test_claim_item_attachment_upload_preview_and_delete(monkeypatch, tmp_path)
     upload_payload = upload_response.json()
     assert upload_payload["attachment"]["file_name"] == "office-note.png"
     assert upload_payload["attachment"]["analysis"]["label"] == "AI提示符合条件"
+    assert upload_payload["attachment"]["document_info"]["document_type"] == "office_invoice"
+    assert upload_payload["attachment"]["requirement_check"]["matches"] is True
     assert upload_payload["invoice_id"]
 
     meta_response = client.get(
@@ -164,6 +166,7 @@ def test_claim_item_attachment_upload_preview_and_delete(monkeypatch, tmp_path)
     meta_payload = meta_response.json()
     assert meta_payload["media_type"] == "image/png"
     assert meta_payload["analysis"]["headline"]
+    assert meta_payload["document_info"]["fields"][0]["label"] == "金额"
 
     content_response = client.get(
         f"/api/v1/reimbursements/claims/{claim_id}/items/{item_id}/attachment",
@@ -228,7 +231,8 @@ def test_claim_item_attachment_upload_flags_purpose_and_amount_mismatch(monkeypa
     analysis = upload_response.json()["attachment"]["analysis"]
     assert analysis["severity"] == "high"
     assert any("金额字段" in point for point in analysis["points"])
-    assert any("用途字段" in point for point in analysis["points"])
+    assert any("附件类型要求" in point for point in analysis["points"])
+    assert upload_response.json()["attachment"]["requirement_check"]["matches"] is False
 
 
 def test_claim_item_attachment_upload_flags_non_invoice_image_as_high_risk(monkeypatch, tmp_path) -> None: