迁移合同费用通用附件

1、删除旧费用附件 API、CRUD、模型和专用前端面板，统一改用通用附件能力。

2、调整合同费用接口为 study_id 语义，并补充合同、凭证、发票等附件类型的权限映射。

3、将合同费用新建和编辑改为抽屉流程，详情页与列表页复用同一编辑组件。

4、补充数据库迁移、附件列表、合同费用抽屉和权限场景测试，覆盖旧权限移除与新流程。

backend/tests/test_contract_fee_basic_fields.py

@@ -4,17 +4,49 @@ from datetime import date
 from decimal import Decimal
 import uuid
 
+from starlette.requests import Request
+
+from app.api.v1 import fees_contracts
 from app.models.contract_fee import ContractFee
 from app.schemas.contract_fee import ContractFeeCreate, ContractFeeRead, ContractFeeUpdate
 
 
+def _request_with_query(query: str) -> Request:
+    return Request(
+        {
+            "type": "http",
+            "method": "GET",
+            "path": "/api/v1/fees/contracts",
+            "query_string": query.encode(),
+            "headers": [],
+        }
+    )
+
+
+def test_contract_fee_list_query_accepts_legacy_project_params():
+    """合同费用列表应兼容旧 projectId/centerId 查询参数。"""
+    study_id = uuid.uuid4()
+    center_id = uuid.uuid4()
+    resolver = getattr(fees_contracts, "_resolve_contract_fee_list_query", None)
+
+    assert resolver is not None
+    resolved_study_id, resolved_center_id = resolver(
+        _request_with_query(f"projectId={study_id}&centerId={center_id}"),
+        None,
+        None,
+    )
+
+    assert resolved_study_id == study_id
+    assert resolved_center_id == center_id
+
+
 def test_contract_fee_schema_includes_contract_basic_fields():
     """合同费用应包含合同基础信息字段。"""
-    project_id = uuid.uuid4()
+    study_id = uuid.uuid4()
     center_id = uuid.uuid4()
 
     payload = ContractFeeCreate(
-        project_id=project_id,
+        study_id=study_id,
         center_id=center_id,
         contract_no="CT-001",
         signed_date=date(2026, 5, 27),
@@ -28,6 +60,8 @@ def test_contract_fee_schema_includes_contract_basic_fields():
     assert payload.signed_date == date(2026, 5, 27)
     assert payload.currency == "CNY"
     assert payload.remark == "首版合同"
+    assert payload.study_id == study_id
+    assert "project_id" not in ContractFeeCreate.model_fields
 
     update_payload = ContractFeeUpdate(contract_no="CT-002", currency="USD", remark="变更合同信息")
     assert update_payload.model_dump(exclude_unset=True) == {
@@ -38,6 +72,8 @@ def test_contract_fee_schema_includes_contract_basic_fields():
 
     for field in ("contract_no", "signed_date", "currency", "remark"):
         assert field in ContractFeeRead.model_fields
+    assert "study_id" in ContractFeeRead.model_fields
+    assert "project_id" not in ContractFeeRead.model_fields
 
 
 def test_contract_fee_model_includes_contract_basic_columns():