feat(proxy): add database-backed config storage with disk backups

- Store proxy configuration in database as primary source for faster access
- Implement automatic timestamped backups when configuration changes
- Add backfill migration logic to recover configs from disk for legacy servers
- Simplify UI by removing loading states (config now readily available)
- Add comprehensive logging for debugging configuration generation and recovery
- Include unit tests for config recovery scenarios

app/Livewire/Server/Proxy.php

@@ -51,6 +51,7 @@ class Proxy extends Component
         $this->redirectEnabled = data_get($this->server, 'proxy.redirect_enabled', true);
         $this->redirectUrl = data_get($this->server, 'proxy.redirect_url');
         $this->syncData(false);
+        $this->loadProxyConfiguration();
     }
 
     private function syncData(bool $toModel = false): void