Feature request: Add a real code editor to Codex App like Cursor

Codex is becoming much stronger, especially with image generation, browser workflows, Git review, and project automation. But one major missing piece is a real built-in code editor inside Codex App. Many users want Codex to feel more like Cursor: file tree, tabs, syntax highlighting, manual code editing, live diffs, and real-time Git changes while the agent works. Right now Codex is a powerful agent, but Cursor is still better as a live coding workspace. Adding a real editor would make Codex much closer to a complete AI IDE. Please consider adding a real editor and real-time Git change visibility to Codex App.