chore: gitignore user-specific docker-compose files & update lockfile (#384)

- Add pattern to ignore generated docker-compose.*.yml files in proxy dir
- Keep docker-compose.user.yml and docker-compose.proxy.yml tracked
- Update package-lock.json with typescript peer dependency

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-authored-by: Mohsin Hashmi <mhashmi@wiser.com>
Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>
Co-authored-by: nazia-datainn <nazia@datainn.io>

Author: 4 people

.gitignore

@@ -45,6 +45,11 @@ lerna-debug.log*
 
 # DevContainer secrets
 .devcontainer/.env
+
+# User-specific docker-compose files (generated by setup-user.sh)
+.devcontainer/proxy/docker-compose.*.yml
+!.devcontainer/proxy/docker-compose.user.yml
+!.devcontainer/proxy/docker-compose.proxy.yml
 .env.development.local
 .env.test.local
 .env.production.local