feat: 修复接口参数并改为form-data格式

- 添加缺失的认证参数：appId, appSecretCode, role
- 修复 analysisType 和 departmentCode 参数
- 将所有接口改为使用 Form 参数（form-data 格式）
- 更新服务层支持字典参数
- 更新所有测试代码
- 所有测试通过（7/7）

lsfx-mock-server/tests/test_api.py

@@ -22,7 +22,7 @@ def test_health_check(client):
 
 def test_get_token_success(client, sample_token_request):
     """测试获取 Token - 成功场景"""
-    response = client.post("/account/common/getToken", json=sample_token_request)
+    response = client.post("/account/common/getToken", data=sample_token_request)
     assert response.status_code == 200
     data = response.json()
     assert data["code"] == "200"
@@ -37,9 +37,13 @@ def test_get_token_error_40101(client):
         "entityName": "测试企业",
         "userId": "902001",
         "userName": "902001",
+        "appId": "remote_app",
+        "appSecretCode": "test_secret_code_12345",
+        "role": "VIEWER",
         "orgCode": "902000",
+        "departmentCode": "902000",
     }
-    response = client.post("/account/common/getToken", json=request_data)
+    response = client.post("/account/common/getToken", data=request_data)
     assert response.status_code == 200
     data = response.json()
     assert data["code"] == "40101"