This PR groups the TUI fixes that restore macOS Terminal usability and clean up the theme/composer regressions:
- copy transcript selections on macOS drag-release so Terminal.app users can copy while mouse tracking is enabled
- copy composer selections on macOS drag-release; composer selection is internal to TextInput and does not use the global Ink selection bus
- keep IDE Cmd+C forwarding setup macOS-only, and make keybinding conflict checks respect simple when-clause overlap/negation
- force truecolor before chalk initializes (unless NO_COLOR / FORCE_COLOR / HERMES_TUI_TRUECOLOR opt-outs apply) so the default banner keeps its gold/amber/bronze gradient in Terminal.app
- move TUI surfaces onto semantic theme tokens and preserve skin prompt symbols as bare tokens with renderer-owned spacing
- render focused placeholders as dim hint text in TTY mode instead of inverse/selected-looking synthetic cursor text
- add reusable overlay key and help-text helpers for picker-style overlays
- make model, session, skills, and pager hints consistently support Esc/q close behavior
A6 added a fixed-height grid (Array.from({length: VISIBLE})), but the
row <Text> itself had no wrap prop so Ink defaulted to wrap="wrap".
A sufficiently long model or provider name would wrap to a second
visual line and bounce the overall picker height right back — which
is exactly what reappeared during the TUI v2 blitz retest on /model.
Pin every picker row (and the empty-state / padding rows) to
wrap="truncate-end" so each slot is guaranteed one line. Applies
across modelPicker, sessionPicker, and skillsHub.
Selected rows in the model/session/skills pickers and approval/clarify
prompts only changed from dim gray to cornsilk, which reads as low
contrast on lighter themes and LCDs (reported during TUI v2 blitz).
Switch the selected row to `inverse bold` with the brand accent color
across modelPicker, sessionPicker, skillsHub, and prompts so the
highlight is terminal-portable and unambiguous. Unselected rows stay
dim. Also extends the sessionPicker middle meta column (which was
always dim) to inherit the row's selection state.
/skills install, inspect, search, browse, list now call the typed skills.manage RPC
and render results via panel/page. Previously they fell through to slash.exec which
invokes v1's curses code path — that hangs or crashes inside the Ink worker per the
§2 parity-audit finding.
Also drop Enter-as-install from the Skills Hub action stage since the Hub lists
locally installed skills; primary action is inspect-and-close. x still triggers a
manual reinstall for power users.
New SkillsHub mirrors ModelPicker's category → item → actions flow with
paginated 12-line lists, 1-9/0 quick-pick, Esc-back navigation, and
lazy skills.manage inspect/install calls. Mount it from appOverlays
when overlay.skillsHub is true.
