feat: add configurable timeout for public database TCP proxy

Adds a per-database 'Proxy Timeout' setting for publicly exposed databases.
The nginx stream proxy_timeout can now be configured in the UI, defaulting
to 3600s (1 hour) instead of nginx's 10min default. Set to 0 for no timeout.

Fixes #7743

app/Actions/Database/StartDatabaseProxy.php

@@ -54,6 +54,8 @@ class StartDatabaseProxy
         if (isDev()) {
             $configuration_dir = '/var/lib/docker/volumes/coolify_dev_coolify_data/_data/databases/'.$database->uuid.'/proxy';
         }
+        $timeout = $database->public_port_timeout ?? 3600;
+        $timeoutConfig = $timeout === 0 ? 'proxy_timeout 0;' : "proxy_timeout {$timeout}s;";
         $nginxconf = <<<EOF
     user  nginx;
     worker_processes  auto;
@@ -67,6 +69,8 @@ class StartDatabaseProxy
        server {
             listen $database->public_port;
             proxy_pass $containerName:$internalPort;
+            $timeoutConfig
+            proxy_connect_timeout 60s;
        }
     }
     EOF;