Kit · K04: compat/kit runs Ely beside the newest GPUI Kit in one window; check.sh holds it to Kit's newest release

tasks/kit.md

@@ -7,7 +7,7 @@ Started 2026-10-07. Ely and Longbridge's GPUI Kit (`gpui-kit` on crates.io) shar
 - Ely binds Tab with no context, which gpui ranks at the deepest level. In a Kit code editor inside an Ely scope, Tab ties with Kit's indent, and the later `init` wins.
 - An app has one asset source. Of Ely's 306 icons, Kit's source holds 290 paths, 289 with the same drawing; `credit-card` differs by one stroke (Lucide 1.48 against 1.43). Ely's `init` checked one icon, so Kit's source alone passed and Ely's other files went missing later.
 - Kit's `init` installs its inspector in debug builds; Ely's `install_inspector` replaces it when called after.
-- Kit can run on `gpui-fast` instead; Ely could not follow.
+- Kit can also run on `gpui-fast`; at the owner's word, Ely follows Kit's default gpui alone.
 
 Rules: the work order follows dependencies, since the PRD has no chapter for it. Each item passes `scripts/check.sh` and a codex review (`gpt-6.1-sol`, effort `high`) in a herdr split, five rounds at most, then commits and pushes.
 
@@ -16,10 +16,9 @@ Rules: the work order follows dependencies, since the PRD has no chapter for it.
 - [x] K01 gpui from `gpui-pre =0.3.8`, Kit's pin: crate, gallery, web build, docs, CI
 - [x] K02 Tab and Shift-Tab bound under `FocusScope`'s own context, so a deeper context's Tab wins whatever the order of `init`
 - [x] K03 Assets: `init` checks every embedded file through the app's source; one source serves Ely's files and another's
-- [ ] K04 `compat/kit`: a crate on the newest Kit that runs both libraries in one window, in `scripts/check.sh` and CI
-- [ ] K05 `gpui-fast`: Ely builds and tests on Kit's other engine, or the item records why not
-- [ ] K06 Docs: README, the site's guide, AGENTS.md
-- [ ] K07 Acceptance table
+- [x] K04 `compat/kit`: a crate on the newest Kit that runs both libraries in one window, in `scripts/check.sh` and CI
+- [ ] K05 Docs: README, the site's guide, AGENTS.md
+- [ ] K06 Acceptance table
 
 ## Log
 
@@ -27,3 +26,4 @@ One line per item: what changed, what stayed and why, review rounds.
 - K01: gpui, gpui_platform and gpui_web come from `gpui-pre` `=0.3.8`; the lock holds no git source and one copy of each. `gpui-pre` split leak detection from `test-support`, so this crate's `test-support` turns on `gpui/leak-detection`, and a test that leaks on purpose proves it. The check, the wasm check, the web build (20.0 MB), a headless Chromium shot and the site build pass. README and the install guide name the snapshot. Review: 2 rounds.
 - K02: `FocusScope` sets the key context `ElyFocus`, and `init` binds Tab and Shift-Tab under it. A host's Tab in a deeper context wins whatever the order of `init` (a test binds the host's first, the order that lost: 0 indents before, 1 after); Ely's terminal, editor, traps and the inspector's scope behave as before. Review: 1 round.
 - K03: `init` loads every file Ely bundles (318, Plex among them) through the app's source and fails naming the first it cannot; an icons-only source like Kit's passed the old one-icon check and fails now. `Assets::before(other)` serves Ely's paths first and the rest from `other`, its errors passing through. Docs and AGENTS.md say so. Review: 1 round.
+- K04: `compat/kit`, its own workspace, opens Ely's root scope inside Kit's `Root` and tests Tab through both libraries in each `init` order (red with K02 undone), Kit's dialog from an Ely button by key and by pointer, Ely's dialog over Kit's fields, and one asset source for both. `check.sh` resolves it afresh and holds `gpui-kit` to the newest release, so a Kit release on another gpui fails resolution naming `gpui-pre` (shown with Kit 0.7.0). Review: 2 rounds.