fix: update expo-localization API usage and migrate to bun

- Fixed locale initialization error by using new getLocales() API
- Replaced yarn.lock and package-lock.json with bun.lock
- Added CLAUDE.md to document bun as the package manager

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

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

Author: hyochan

.claude/settings.local.json

@@ -0,0 +1,8 @@
+{
+  "permissions": {
+    "allow": [
+      "Bash(git add:*)"
+    ],
+    "deny": []
+  }
+}

CLAUDE.md

@@ -0,0 +1,15 @@
+# Project Configuration
+
+## Package Manager
+This project uses **Bun** as the package manager.
+
+## Commands
+- Install dependencies: `bun install`
+- Run development server: `bun start`
+- Run tests: `bun test`
+- Run linting: `bun lint`
+- Run type checking: `bun typecheck`
+
+## Important Notes
+- Always use `bun` instead of `npm` or `yarn` for package management
+- The lock file is `bun.lock` (not `package-lock.json` or `yarn.lock`)