refactor: remove obsolete resource download and installer endpoints

- Deleted the `POST /resources/get/{dataFolder?}` and `GET /resources/get-installer` endpoints as part of the architectural shift towards simplified resource management.
- Removed associated methods and configurations, including `ResourcesService.GetEncryptedResource`, `ResourcesService.GetInstaller`, and related properties in `ResourcesConfig`.
- Cleaned up environment variables and configuration files to reflect the removal of installer-related settings.
- Eliminated the `GetResourceRequest` DTO and its validator, along with the `WrongResourceName` error code.
- Updated documentation to clarify the changes in resource handling and the retirement of per-user file encryption.

Co-authored-by: Cursor <cursoragent@cursor.com>

secrets/production.public.env

@@ -8,8 +8,6 @@ ASPNETCORE_JwtConfig__Issuer=AzaionApi
 ASPNETCORE_JwtConfig__Audience=Annotators/OrangePi/Admins
 ASPNETCORE_JwtConfig__TokenLifetimeHours=4
 ASPNETCORE_ResourcesConfig__ResourcesFolder=Content
-ASPNETCORE_ResourcesConfig__SuiteInstallerFolder=suite
-ASPNETCORE_ResourcesConfig__SuiteStageInstallerFolder=suite-stage
 
 DEPLOY_CONTAINER_NAME=azaion.api
 DEPLOY_HOST_PORT=4000

secrets/staging.public.env

@@ -9,8 +9,6 @@ ASPNETCORE_JwtConfig__Issuer=AzaionApi
 ASPNETCORE_JwtConfig__Audience=Annotators/OrangePi/Admins
 ASPNETCORE_JwtConfig__TokenLifetimeHours=4
 ASPNETCORE_ResourcesConfig__ResourcesFolder=Content
-ASPNETCORE_ResourcesConfig__SuiteInstallerFolder=suite
-ASPNETCORE_ResourcesConfig__SuiteStageInstallerFolder=suite-stage
 
 # Deploy-host plumbing.
 DEPLOY_CONTAINER_NAME=azaion.api