feat(frontend): add auto-save to UserProfileDrawer and Edit Project drawer

Commit notes

- UserProfileDrawer now auto-saves name, bio, and share notification preferences - Edit Project drawer now auto-saves project name, description, color, and visibility - Both use the existing createAutoSave hook with debounced saving (1s) - Shows save status indicators (saving/saved/pending/error) - Save immediately on drawer close if there are pending changes - Simplified footer buttons from Cancel/Save to just Done

Co-authored-by: armin.naimi <[email redacted]>