Bundles the pending native-UI session (dark shell, style overhaul, audio
page) with review fixes:
- native Row: set_subtitle_lines + set_activatable_widget (store and
online-accounts pages crashed with AttributeError under TANINUX_UI=native)
- wine page routed through the ui seam (last direct Adw import removed)
- console: delete no-op log_expander/collapsible_log and .clear() call sites
- ui/__init__ docstring now states the actual default backend (native)
- tests/test_pages_native.py builds every registered page under the native
backend (29 pass; skips headless)
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
