feat(replicas): auto-heal slave data drift and no-store public settings

Add sync-replica-data repair on deploy, a publisher-side replica watch
(60s + after tenant/settings writes), REFRESH PUBLICATION after migrate,
and Cache-Control no-store on program-settings and get_version.

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

src/get-version/get-version.controller.ts

@@ -1,4 +1,4 @@
-import { Controller, Get, Headers, Query } from '@nestjs/common';
+import { Controller, Get, Header, Headers, Query } from '@nestjs/common';
 import { GetVersionService } from './get-version.service';
 
 @Controller()
@@ -6,6 +6,7 @@ export class GetVersionController {
   constructor(private readonly getVersionService: GetVersionService) {}
 
   @Get('get_version')
+  @Header('Cache-Control', 'no-store')
   getVersion(
     @Headers('host') host?: string,
     @Headers('x-forwarded-host') forwardedHost?: string,