refactor(server): decouple generated images from image formats (#8246)

* rename

thumbnail config

update target paths, fix tests

rename to image settings

replace legacy enum

better typing

update sql

update api

remove config option

fix

* update docs

* update other thumbnail configs in migration

* keep legacy enum for now

* fix jumbled job names

* fix jumbled job names in tests

* rename thumbhash job

* rename dto

* fix tests

* preserve order

* remove unused import

* keep old fields in dto, marked deprecated

* update sql

---------

Co-authored-by: Alex Tran <alex.tran1502@gmail.com>

mobile/openapi/lib/api_client.dart

@@ -304,6 +304,8 @@ class ApiClient {
           return FileReportFixDto.fromJson(value);
         case 'FileReportItemDto':
           return FileReportItemDto.fromJson(value);
+        case 'ImageFormat':
+          return ImageFormatTypeTransformer().decode(value);
         case 'JobCommand':
           return JobCommandTypeTransformer().decode(value);
         case 'JobCommandDto':
@@ -432,6 +434,8 @@ class ApiClient {
           return SystemConfigDto.fromJson(value);
         case 'SystemConfigFFmpegDto':
           return SystemConfigFFmpegDto.fromJson(value);
+        case 'SystemConfigImageDto':
+          return SystemConfigImageDto.fromJson(value);
         case 'SystemConfigJobDto':
           return SystemConfigJobDto.fromJson(value);
         case 'SystemConfigLibraryDto':
@@ -462,8 +466,6 @@ class ApiClient {
           return SystemConfigTemplateStorageOptionDto.fromJson(value);
         case 'SystemConfigThemeDto':
           return SystemConfigThemeDto.fromJson(value);
-        case 'SystemConfigThumbnailDto':
-          return SystemConfigThumbnailDto.fromJson(value);
         case 'SystemConfigTrashDto':
           return SystemConfigTrashDto.fromJson(value);
         case 'SystemConfigUserDto':