refactor: port reqparse to Pydantic model (#28949)

Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

api/controllers/console/billing/compliance.py

@@ -1,5 +1,6 @@
 from flask import request
-from flask_restx import Resource, reqparse
+from flask_restx import Resource
+from pydantic import BaseModel, Field
 
 from libs.helper import extract_remote_ip
 from libs.login import current_account_with_tenant, login_required
@@ -9,16 +10,28 @@ from .. import console_ns
 from ..wraps import account_initialization_required, only_edition_cloud, setup_required
 
 
+class ComplianceDownloadQuery(BaseModel):
+    doc_name: str = Field(..., description="Compliance document name")
+
+
+console_ns.schema_model(
+    ComplianceDownloadQuery.__name__,
+    ComplianceDownloadQuery.model_json_schema(ref_template="#/definitions/{model}"),
+)
+
+
 @console_ns.route("/compliance/download")
 class ComplianceApi(Resource):
+    @console_ns.expect(console_ns.models[ComplianceDownloadQuery.__name__])
+    @console_ns.doc("download_compliance_document")
+    @console_ns.doc(description="Get compliance document download link")
     @setup_required
     @login_required
     @account_initialization_required
     @only_edition_cloud
     def get(self):
         current_user, current_tenant_id = current_account_with_tenant()
-        parser = reqparse.RequestParser().add_argument("doc_name", type=str, required=True, location="args")
-        args = parser.parse_args()
+        args = ComplianceDownloadQuery.model_validate(request.args.to_dict(flat=True))  # type: ignore
 
         ip_address = extract_remote_ip(request)
         device_info = request.headers.get("User-Agent", "Unknown device")