Ink's `useApp()` returns `{ exit, waitUntilRenderFlush }`. vue-tui previously
exposed only `exit()` via `useExit()` and kept `waitUntilRenderFlush` on the
`TuiApp` handle alone. Align the public surface with Ink: add `useAppContext()`
returning the same pair, and remove `useExit()`.
- thread `waitUntilRenderFlush` into the injected `AppContext` via a hoisted
impl shared by the `TuiApp` handle and the composable, so both resolve
identically
- add `useAppContext()`; delete `useExit()`; migrate all call sites, PTY
fixtures, examples, READMEs and the public-API surface test
- port Ink's two "useApp waitUntilRenderFlush" tests; Ink's third relies on
React concurrent mode (N/A in Vue)
- rewrite the ink-divergences entry: this is now a *naming* divergence
(`useAppContext` vs `useApp`, mirroring `createApp` vs `render`), not a
surface one — and fix the prior wrong claim that Ink's `useApp` returns
stdin/stdout/stderr
The name is qualified (`useAppContext`, not `useApp`) so it doesn't read as the
Vue application instance (`createApp`/`app.mount`) — the same Vue-native naming
choice vue-tui already makes with `createApp()` vs Ink's `render()`.
BREAKING CHANGE: `useExit()` is removed. Replace `const exit = useExit()` with
`const { exit } = useAppContext()`.
Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
The test asserting process.listenerCount("beforeExit") lived in the
parallel wait-flush.test.tsx, conflicting with the branch's rule that
process-global-state tests live in *.sequential.test.* files. Move it into
leak.sequential.test.tsx (already the home for process exit/SIGINT listener-
count assertions) and extend that file's header comment. #26 (item 2).
Add four behavioral surfaces to the runtime:
- patchConsole (default: true): intercepts console.* methods to route
output through writeToStdout/writeToStderr, preventing frame corruption.
Disabled in debug mode. Restored before Vue cleanup on teardown.
- waitUntilRenderFlush(): flushes pending throttled renders and waits
for the stdout write barrier, exposed on TuiApp and testing RenderResult.
- onRender callback: fires after each commit with { renderTime } in ms.
- maxFps option: overrides the scheduler's default 32ms throttle interval
with 1000/maxFps. The scheduler now accepts a throttleMs option and
exposes hasPending() for flush coordination.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>