Bump version to 0.1.0 for release, ignore local Claude notes

.gitignore now excludes CLAUDE.md/CLAUDE.local.md and common
IDE/OS/env cruft so local assistant notes never get committed.

.gitignore

@@ -1,8 +1,30 @@
+# Claude / AI assistant notes — local to this machine, never committed
+CLAUDE.md
+CLAUDE.local.md
+.claude/
+
+# PHP
 /vendor/
+/composer.lock
+.php-cs-fixer.cache
+.phpunit.result.cache
+
+# JS / build output
 /node_modules/
 /js/
 /build/
-/composer.lock
 /package-lock.json
-.php-cs-fixer.cache
-.phpunit.result.cache
+
+# IDE / editor
+.vscode/
+.idea/
+*.swp
+*.swo
+
+# OS
+.DS_Store
+Thumbs.db
+
+# Local env / secrets
+.env
+.env.local