opentui(phase3): launcher integration — HERMES_TUI_ENGINE dual-engine

hermes --tui launches the native OpenTUI engine (Bun) when
HERMES_TUI_ENGINE=opentui (env) or display.tui_engine=opentui (config);
Ink stays the default and the shipping path is untouched.

- _resolve_tui_engine() (env > config > ink); refuses opentui on
  Windows/Termux (no Bun) -> falls back to ink with a notice.
- _make_opentui_argv() -> [bun, src/entry.real.tsx] (no build step).
- _bun_bin() with HERMES_BUN override.
- Branch at top of _make_tui_argv BEFORE _ensure_tui_node (Bun-only host
  must not bootstrap Node).
- Gate _launch_tui NODE_OPTIONS/--max-old-space-size on engine==ink (Bun
  is JSC; the V8 flag errors/ignores).

Verified end-to-end via tmux: real hermes --tui -> Bun -> OpenTUI ->
real Python gateway streamed a real reply. No-flag default still ink.

.gitignore

@@ -89,9 +89,6 @@ website/static/api/skills-index.json
 # every build).
 website/static/api/skills.json
 website/static/api/skills-meta.json
-# automation-blueprints-index.json is a build artifact emitted by
-# website/scripts/extract-automation-blueprints.py during prebuild.
-website/static/api/automation-blueprints-index.json
 models-dev-upstream/
 
 # Local editor / agent tooling (machine-specific; keep in global config, not the repo)
@@ -117,12 +114,6 @@ docs/superpowers/*
 # treat it as a local edit and autostash it on every run (#38529).
 .hermes-bootstrap-complete
 
-# Interrupted-update breadcrumb + recovery lock written next to the shared venv
-# by `hermes update` / launch-time self-heal. Runtime state, never a code change
-# — ignore so `git status` stays clean and update's autostash skips them.
-.update-incomplete
-.update-incomplete.lock
-
 # Tool Search live-test harness output — non-deterministic model transcripts,
 # regenerated by scripts/tool_search_livetest.py. Never an artifact of the repo.
 scripts/out/