High-severity fixes:
- Replace 2× unreachable!('mkdir not spawned with progress') in
dialog_ops.rs:855,869 with graceful Ok(()) returns — prevents
runtime panic if MkDir ever gains progress support
Documentation fixes:
- Update outdated 'open_file was the Phase 0 stub' comment in
viewer/mod.rs to reflect current state (standalone tlcview binary)
- Update usermenu.rs CK_EditUserMenu TODO — feature already
implemented in dispatch_editor_cmd
- Update PLAN.md retry description — progress-dialog retry IS
functional; only background-jobs retry is state-only
Tests: 1427 pass, zero warnings.
vasilito
b95ac973e8