W1: Fix 3 dead dialogs (DisplayBits/VfsSettings/LearnKeys) that could never close
- Capture handle_key() return value, close on Cancel/Confirm
W2: Implement Cmd::Suspend with actual SIGTSTP via kill -TSTP 4035172
- Add want_suspend field, ExternalAction::Suspend variant
- Drop TUI, send SIGTSTP, recreate TUI on resume
W3: Wire Connection dialog to Panel::navigate_to_vfs()
- Parse VFS URL, look up backend, redirect active panel
- Store Encoding dialog selection on FileManager.display_encoding
W4: Wire CK_EditUserMenu (EditorCmd::EditUserMenu)
- Opens user menu storage_path in editor via Editor::open()
- Fix unreachable!() in SaveBeforeClose prompt rendering
W5: Add ErrorOutcome::SkipAll variant + Shift-S keybinding
- Fix misleading doc comment about non-existent 'All' variants
- Add SkipAll button in error dialog render
Also: Fix all 41 compiler warnings (unused imports/vars, missing docs on
public API, remove dead SPECIAL_LABELS constant, remove unused viewer_bold)
1381 tests pass, zero warnings.
vasilito
8a77a6ebde