feat(parameters): standardize system parameter field types and values (#9797)

api/controllers/console/explore/parameter.py

         "options": fields.List(fields.String),
     }
 
-    system_parameters_fields = {"image_file_size_limit": fields.String}
+    system_parameters_fields = {
+        "image_file_size_limit": fields.Integer,
+        "video_file_size_limit": fields.Integer,
+        "audio_file_size_limit": fields.Integer,
+    }
 
     parameters_fields = {
         "opening_statement": fields.String,
                     }
                 },
             ),
-            "system_parameters": {"image_file_size_limit": dify_config.UPLOAD_IMAGE_FILE_SIZE_LIMIT},
+            "system_parameters": {
+                "image_file_size_limit": dify_config.UPLOAD_IMAGE_FILE_SIZE_LIMIT,
+                "video_file_size_limit": dify_config.UPLOAD_VIDEO_FILE_SIZE_LIMIT,
+                "audio_file_size_limit": dify_config.UPLOAD_AUDIO_FILE_SIZE_LIMIT,
+            },
         }
 
 

api/controllers/service_api/app/app.py

         "options": fields.List(fields.String),
     }
 
-    system_parameters_fields = {"image_file_size_limit": fields.String}
+    system_parameters_fields = {
+        "image_file_size_limit": fields.String,
+        "video_file_size_limit": fields.Integer,
+        "audio_file_size_limit": fields.Integer,
+    }
 
     parameters_fields = {
         "opening_statement": fields.String,
                     }
                 },
             ),
-            "system_parameters": {"image_file_size_limit": dify_config.UPLOAD_IMAGE_FILE_SIZE_LIMIT},
+            "system_parameters": {
+                "image_file_size_limit": dify_config.UPLOAD_IMAGE_FILE_SIZE_LIMIT,
+                "video_file_size_limit": dify_config.UPLOAD_VIDEO_FILE_SIZE_LIMIT,
+                "audio_file_size_limit": dify_config.UPLOAD_AUDIO_FILE_SIZE_LIMIT,
+            },
         }
 
 

api/controllers/web/app.py

         "options": fields.List(fields.String),
     }
 
-    system_parameters_fields = {"image_file_size_limit": fields.String}
+    system_parameters_fields = {
+        "image_file_size_limit": fields.Integer,
+        "video_file_size_limit": fields.Integer,
+        "audio_file_size_limit": fields.Integer,
+    }
 
     parameters_fields = {
         "opening_statement": fields.String,
                     }
                 },
             ),
-            "system_parameters": {"image_file_size_limit": dify_config.UPLOAD_IMAGE_FILE_SIZE_LIMIT},
+            "system_parameters": {
+                "image_file_size_limit": dify_config.UPLOAD_IMAGE_FILE_SIZE_LIMIT,
+                "video_file_size_limit": dify_config.UPLOAD_VIDEO_FILE_SIZE_LIMIT,
+                "audio_file_size_limit": dify_config.UPLOAD_AUDIO_FILE_SIZE_LIMIT,
+            },
         }