Allow ChatGPT Projects to sync with a selected local Windows folder

Codex already works closely with local project files, but ChatGPT Projects currently require manual upload/re-upload when files change. For users who use Codex for heavy implementation work and ChatGPT Projects for lighter reasoning, planning, writing, review, and explanation, this creates a lot of unnecessary file-management friction.

Ideal behavior:

• Let a Project bind to a local folder.

• Watch for changed, added, renamed, or deleted files.

• Support include/exclude rules by folder and extension.

• Exclude common folders like .git, node_modules, dist, build, vendor, and cache directories.

• Show sync/indexing status.

• Provide a manual “Re-index now” button.

• Use hashes or incremental updates so unchanged files are not repeatedly uploaded or reprocessed.

This would reduce user friction, avoid stale project context, and may be more resource-efficient than repeated manual reuploads and full reprocessing. It would also create a much cleaner workflow between Codex and regular ChatGPT Projects.