refactor: centralize domain values and enforce numeric lint

src/modules/investments/tbank-connection/tbank-connection.controller.ts

@@ -4,6 +4,7 @@ import {
   Delete,
   Get,
   HttpCode,
+  HttpStatus,
   Put,
   Req,
   UseGuards,
@@ -47,7 +48,7 @@ export class TbankConnectionController {
   }
 
   @Delete()
-  @HttpCode(204)
+  @HttpCode(HttpStatus.NO_CONTENT)
   @ApiNoContentResponse()
   delete(@Req() request: Request & { user: AccessPayload }): Promise<void> {
     return this.connection.delete(request.user.sub);