reactor&remove: 重构applications模块 & 移除applications、perms中已不再使用的模块 (#5374)

* reactor: 重构applications模块 & 删除applications、perms中已不再使用的模块

 * reactor: 1. 针对application.attrs字段的view-serializer映射逻辑，采用DynamicMapping的方案重写;
 * reactor: 2. 删除applications和perms模块中已不再使用的database-app/k8s-app/remote-app模块;

* reactor: 添加迁移文件(删除perms/databaseperrmission/remoteapppermission/k8sapppermission)

* reactor: 修改细节

Co-authored-by: Bai <bugatti_it@163.com>

apps/assets/models/user.py

@@ -205,16 +205,15 @@ class SystemUser(BaseUser):
         return assets
 
     @classmethod
-    def get_protocol_by_application_type(cls, application_type):
-        from applications.models import Category
-        remote_app_types = list(dict(Category.get_type_choices(Category.remote_app)).keys())
-        if application_type in remote_app_types:
+    def get_protocol_by_application_type(cls, app_type):
+        from applications.const import ApplicationTypeChoices
+        if app_type in ApplicationTypeChoices.remote_app_types():
             return cls.PROTOCOL_RDP
-        cloud_types = list(dict(Category.get_type_choices(Category.cloud)).keys())
-        db_types = list(dict(Category.get_type_choices(Category.db)).keys())
-        other_types = [*cloud_types, *db_types]
-        if application_type in other_types:
-            return application_type
+        protocol = None
+        other_types = [*ApplicationTypeChoices.db_types(), *ApplicationTypeChoices.cloud_types()]
+        if app_type in other_types and app_type in cls.APPLICATION_CATEGORY_PROTOCOLS:
+            protocol = app_type
+        return protocol
 
     class Meta:
         ordering = ['name']