feat(Docker): Upgrade to PHP 8.5.0RC3 with native ext-uri support

BREAKING CHANGE: Requires PHP 8.5.0RC3

Changes:
- Update Docker base image from php:8.4-fpm to php:8.5.0RC3-fpm
- Enable ext-uri for native WHATWG URL parsing support
- Update composer.json PHP requirement from ^8.4 to ^8.5
- Add ext-uri as required extension in composer.json
- Move URL classes from Url.php85/ to Url/ directory (now compatible)
- Remove temporary PHP 8.4 compatibility workarounds

Benefits:
- Native URL parsing with Uri\WhatWg\Url class
- Better performance for URL operations
- Future-proof with latest PHP features
- Eliminates PHP version compatibility issues

src/Framework/Database/ConnectionInitializer.php

@@ -31,6 +31,7 @@ final readonly class ConnectionInitializer
             // Create a simple database manager for connection only with minimal dependencies
             $databaseManager = new DatabaseManager(
                 config: $databaseConfig,
+                platform: $databaseConfig->driverConfig->platform,
                 timer: $timer,
                 migrationsPath: 'database/migrations'
             );

src/Framework/Database/EntityManagerInitializer.php

@@ -8,6 +8,7 @@ use App\Framework\Core\Events\EventDispatcher;
 use App\Framework\Database\Cache\EntityCacheManager;
 use App\Framework\Database\Config\DatabaseConfig;
 use App\Framework\Database\Platform\MySQLPlatform;
+use App\Framework\Database\Platform\PostgreSQLPlatform;
 use App\Framework\DateTime\Clock;
 use App\Framework\DateTime\Timer;
 use App\Framework\DI\Container;
@@ -31,7 +32,7 @@ final readonly class EntityManagerInitializer
         }
 
         // Create platform for the database (defaulting to MySQL)
-        $platform = new MySQLPlatform();
+        $platform = new PostgreSQLPlatform();
 
         $db = new DatabaseManager(
             $databaseConfig,