feat(story-1.1): scaffold Symfony 7.4 LTS app with DDEV, Messenger, Scheduler

- DDEV config: PHP 8.4, PostgreSQL 16, nginx-fpm, Imagick via webimage_extra_packages
- Symfony 7.4 LTS skeleton + webapp pack scaffolded via Composer
- Removed AssetMapper, Stimulus, UX-Turbo (replaced by Vue 3 SPA per architecture)
- Added symfony/messenger + symfony/scheduler (Doctrine transport)
- Gitea CI workflow: PHP 8.4 container + PostgreSQL 16 service, runs phpunit

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

config/bundles.php

@@ -0,0 +1,14 @@
+<?php
+
+return [
+    Symfony\Bundle\FrameworkBundle\FrameworkBundle::class => ['all' => true],
+    Doctrine\Bundle\DoctrineBundle\DoctrineBundle::class => ['all' => true],
+    Doctrine\Bundle\MigrationsBundle\DoctrineMigrationsBundle::class => ['all' => true],
+    Symfony\Bundle\DebugBundle\DebugBundle::class => ['dev' => true],
+    Symfony\Bundle\TwigBundle\TwigBundle::class => ['all' => true],
+    Symfony\Bundle\WebProfilerBundle\WebProfilerBundle::class => ['dev' => true, 'test' => true],
+    Twig\Extra\TwigExtraBundle\TwigExtraBundle::class => ['all' => true],
+    Symfony\Bundle\SecurityBundle\SecurityBundle::class => ['all' => true],
+    Symfony\Bundle\MonologBundle\MonologBundle::class => ['all' => true],
+    Symfony\Bundle\MakerBundle\MakerBundle::class => ['dev' => true],
+];