feat(site) : add color field to sites + frontend submodule update

- Add color VARCHAR(7) column to sites entity
- Migration with IF NOT EXISTS for idempotence
- Update reference config
- Frontend: site color picker, dark mode, card styling improvements

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

config/reference.php

@@ -1,7 +1,5 @@
 <?php
 
-declare(strict_types=1);
-
 // This file is auto-generated and is for apps only. Bundles SHOULD NOT rely on its content.
 
 namespace Symfony\Component\DependencyInjection\Loader\Configurator;
@@ -1387,7 +1385,7 @@ use Symfony\Component\Config\Loader\ParamConfigurator as Param;
  *     mercure?: bool|array{
  *         enabled?: bool|Param, // Default: false
  *         hub_url?: scalar|null|Param, // The URL sent in the Link HTTP header. If not set, will default to the URL for MercureBundle's default hub. // Default: null
- *         include_type?: bool|Param, // Always include @var in updates (including delete ones). // Default: false
+ *         include_type?: bool|Param, // Always include @type in updates (including delete ones). // Default: false
  *     },
  *     messenger?: bool|array{
  *         enabled?: bool|Param, // Default: false
@@ -1608,12 +1606,6 @@ use Symfony\Component\Config\Loader\ParamConfigurator as Param;
  *         cache?: scalar|null|Param, // Storage to track blocked tokens // Default: "cache.app"
  *     },
  * }
- * @psalm-type DamaDoctrineTestConfig = array{
- *     enable_static_connection?: mixed, // Default: true
- *     enable_static_meta_data_cache?: bool|Param, // Default: true
- *     enable_static_query_cache?: bool|Param, // Default: true
- *     connection_keys?: list<mixed>,
- * }
  * @psalm-type ConfigType = array{
  *     imports?: ImportsConfig,
  *     parameters?: ParametersConfig,
@@ -1664,7 +1656,6 @@ use Symfony\Component\Config\Loader\ParamConfigurator as Param;
  *         nelmio_cors?: NelmioCorsConfig,
  *         api_platform?: ApiPlatformConfig,
  *         lexik_jwt_authentication?: LexikJwtAuthenticationConfig,
- *         dama_doctrine_test?: DamaDoctrineTestConfig,
  *     },
  *     ...<string, ExtensionType|array{ // extra keys must follow the when@%env% pattern or match an extension alias
  *         imports?: ImportsConfig,