chore: add .envrc to gitignore

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: prosdev

.gitignore

@@ -31,6 +31,7 @@ pnpm-debug.log*
 
 # Environment
 .env
+.envrc
 .env.local
 .env.development.local
 .env.test.local