feat(server): support multiple hosts in one deployment (#12950)

close CLOUD-233



#### PR Dependency Tree


* **PR #12950** 👈

This tree was auto-generated by
[Charcoal](https://github.com/danerwilliams/charcoal)

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

* **New Features**
* Added support for configuring multiple server hosts across backend and
frontend settings.
* Enhanced deployment and Helm chart configuration to allow specifying
multiple ingress hosts.
* Updated admin and configuration interfaces to display and manage
multiple server hosts.

* **Improvements**
* Improved URL generation, OAuth, and worker service logic to
dynamically handle requests from multiple hosts.
  * Enhanced captcha verification to support multiple allowed hostnames.
* Updated frontend logic for platform-specific server base URLs and
allowed origins, including Apple app domains.
  * Expanded test coverage for multi-host scenarios.

* **Bug Fixes**
* Corrected backend logic to consistently use dynamic base URLs and
origins based on request host context.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

packages/backend/server/src/app.module.ts

@@ -8,6 +8,7 @@ import { ClsModule } from 'nestjs-cls';
 
 import { AppController } from './app.controller';
 import {
+  getRequestFromHost,
   getRequestIdFromHost,
   getRequestIdFromRequest,
   ScannerModule,
@@ -66,8 +67,9 @@ export const FunctionalityModules = [
         // make every request has a unique id to tracing
         return getRequestIdFromRequest(req, 'http');
       },
-      setup(cls, _req, res: Response) {
+      setup(cls, req: Request, res: Response) {
         res.setHeader('X-Request-Id', cls.getId());
+        cls.set(CLS_REQUEST_HOST, req.hostname);
       },
     },
     // for websocket connection
@@ -79,6 +81,10 @@ export const FunctionalityModules = [
         // make every request has a unique id to tracing
         return getRequestIdFromHost(context);
       },
+      setup(cls, context: ExecutionContext) {
+        const req = getRequestFromHost(context);
+        cls.set(CLS_REQUEST_HOST, req.hostname);
+      },
     },
     plugins: [
       // https://papooch.github.io/nestjs-cls/plugins/available-plugins/transactional/prisma-adapter