fix: bind OAuth server to 0.0.0.0 for WSL2 compatibility

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

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: brettheap

packages/openai-codex-auth/src/constants.ts

@@ -13,7 +13,7 @@ export const OAUTH_CONFIG = {
 } as const
 
 export const LOCAL_SERVER = {
-  host: "127.0.0.1",
+  host: "0.0.0.0", // Bind to all interfaces for WSL2 compatibility
   port: 1455,
   callbackPath: "/auth/callback",
 } as const