fix(package): exclude .config and .gitea from the zip

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

.config/shopware-extension.yml

@@ -14,6 +14,8 @@ build:
           - AGENTS.md
           - CLAUDE.md
           - QWEN.md
+          - .config
+          - .gitea
           - .claude
           - .scratch
           - .wayfinder

CHANGELOG.md

@@ -11,6 +11,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Fixed
 
+- The packaged zip no longer contains `.gitea/` and `.config/`.
 - Release pipeline: the Composer registry rejected the packaged zip (`composer.json file is missing`) because `shopware-cli` zips wrap everything in a top-level folder. The same prebuilt content is now repacked root-level for the registry upload.
 - Release steps are idempotent (existing release and asset are reused, registry 409 counts as published) and the "tag exists -> skip" guard is gone, so a failed release can be re-run to completion.