feat(plugin): align with Shopware plugin guidelines

- add dedicated monolog channel aeon_dump_manager and log dump jobs
- migrate services.xml/routes.php to YAML
- require PHP ^8.2
- add extension icon and .config/shopware-extension.yml
- drop empty lifecycle overrides

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

composer.json

@@ -25,7 +25,7 @@
         "source": "https://git.arthurerlich.de/haylan/AeonDumpManager"
     },
     "require": {
-        "php": "^8.1",
+        "php": "^8.2",
         "shopware/core": "~6.6.0"
     },
     "require-dev": {