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/Actions/Proxy/GetProxyConfiguration.php

@@ -4,6 +4,7 @@ namespace App\Actions\Proxy;
 
 use App\Models\Server;
 use App\Services\ProxyDashboardCacheService;
+use Illuminate\Support\Facades\Log;
 use Lorisleiva\Actions\Concerns\AsAction;
 
 class GetProxyConfiguration
@@ -17,28 +18,31 @@ class GetProxyConfiguration
             return 'OK';
         }
 
-        $proxy_path = $server->proxyPath();
         $proxy_configuration = null;
 
-        // If not forcing regeneration, try to read existing configuration
         if (! $forceRegenerate) {
-            $payload = [
-                "mkdir -p $proxy_path",
-                "cat $proxy_path/docker-compose.yml 2>/dev/null",
-            ];
-            $proxy_configuration = instant_remote_process($payload, $server, false);
+            // Primary source: database
+            $proxy_configuration = $server->proxy->get('last_saved_proxy_configuration');
+
+            // Backfill: existing servers may not have DB config yet — read from disk once
+            if (empty(trim($proxy_configuration ?? ''))) {
+                $proxy_configuration = $this->backfillFromDisk($server);
+            }
         }
 
-        // Generate default configuration if:
-        // 1. Force regenerate is requested
-        // 2. Configuration file doesn't exist or is empty
+        // Generate default configuration as last resort
         if ($forceRegenerate || empty(trim($proxy_configuration ?? ''))) {
-            // Extract custom commands from existing config before regenerating
             $custom_commands = [];
             if (! empty(trim($proxy_configuration ?? ''))) {
                 $custom_commands = extractCustomProxyCommands($server, $proxy_configuration);
             }
 
+            Log::warning('Proxy configuration regenerated to defaults', [
+                'server_id' => $server->id,
+                'server_name' => $server->name,
+                'reason' => $forceRegenerate ? 'force_regenerate' : 'config_not_found',
+            ]);
+
             $proxy_configuration = str(generateDefaultProxyConfiguration($server, $custom_commands))->trim()->value();
         }
 
@@ -50,4 +54,30 @@ class GetProxyConfiguration
 
         return $proxy_configuration;
     }
+
+    /**
+     * Backfill: read config from disk for servers that predate DB storage.
+     * Stores the result in the database so future reads skip SSH entirely.
+     */
+    private function backfillFromDisk(Server $server): ?string
+    {
+        $proxy_path = $server->proxyPath();
+        $result = instant_remote_process([
+            "mkdir -p $proxy_path",
+            "cat $proxy_path/docker-compose.yml 2>/dev/null",
+        ], $server, false);
+
+        if (! empty(trim($result ?? ''))) {
+            $server->proxy->last_saved_proxy_configuration = $result;
+            $server->save();
+
+            Log::info('Proxy config backfilled to database from disk', [
+                'server_id' => $server->id,
+            ]);
+
+            return $result;
+        }
+
+        return null;
+    }
 }