- Remove Edit button from header, add pencil icons next to editable fields
- Add inline editing for Version, Author, and Comment metadata fields
- Implement save options modal with overwrite/save-as-new functionality
- Add file dialog integration for save-as-new option
- Fix backend MANIFEST_FILENAME error by using correct string literals
- Add CSS styling for editable fields and save options modal
- Clean up debug logging code
BREAKING CHANGE: Edit button removed from UI in favor of inline editing
