CloudMigrations: Refactor API for async work (#89084)

* rename some stuff

* more renaming

* clean up api

* rename more functions

* rename cms -> gms

* update comment

* update swagger gen

* update endpoints

* overzealous

* final touches

* dont modify existing migrations

* break structs into domain and dtos

* add some conversion funcs

* fix build

* update frontend

* try to make swagger happy

scripts/generate-rtk-apis.ts

@@ -13,13 +13,13 @@ const config: ConfigFile = {
       apiImport: 'baseAPI',
       filterEndpoints: [
         'createCloudMigrationToken',
-        'getMigrationList',
-        'getCloudMigration',
-        'createMigration',
+        'getSessionList',
+        'getSession',
+        'createSession',
+        'deleteSession',
         'runCloudMigration',
         'getCloudMigrationRun',
         'getCloudMigrationRunList',
-        'deleteCloudMigration',
         'getDashboardByUid',
       ],
     },