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ci: add headless-browser boot smoke for the web client (#1615) (#1768)
* ci: add headless-browser boot smoke for the web client (#1615)

smoke:web only asserts GET / serves the SPA HTML with the injected token;
it never runs the React app, so a Node built-in reaching the browser
bundle (which crashes the app to a blank page at runtime, e.g. #1612)
slips through. Add smoke:web:browser, which boots the same prod --web
server and runs the bundle in headless Chromium (Playwright, already a
clients/web devDependency), asserting the app renders its first frame
(the "Add Servers" control) with no uncaught page errors — in particular
no `Module "node:*" has been externalized`. This catches "Node code
reached the browser bundle" as a class, not one import at a time.

Wire it into the root smoke chain (and thus npm run ci / GitHub CI), and
move the Playwright install/cache steps ahead of the smoke step so the
new smoke reuses the cache. Update AGENTS.md and README.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XNdjEPKLG637X8YmhDiEk5

* ci: address review on the headless-browser boot smoke

- Don't fail on benign console.error (CDN font loads, React warnings) — the
  #1612 class arrives as an uncaught pageerror. console errors are now
  diagnostics, hard-failing only when they carry the externalization
  signature.
- Broaden the externalization regex to non-prefixed built-ins ("fs" as well
  as "node:fs") and label the signature on both the pageerror and console
  channels.
- Rename the port override to SMOKE_WEB_BROWSER_PORT so it doesn't collide
  with smoke:web's SMOKE_WEB_PORT.
- Add a settle window (networkidle + 500ms) so a late-evaluating lazy chunk
  that throws is caught, and race the render against launcher death so a
  mid-load crash reports the real cause instead of a render timeout.
- Print an actionable hint when Playwright/chromium can't launch (missing
  --with-deps system libs).
- Extract the shared spawn/readiness boilerplate into
  scripts/lib/prod-web-server.mjs so smoke-web and smoke-web-browser can't
  drift.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XNdjEPKLG637X8YmhDiEk5

* ci: fix playwright resolution in the browser smoke (CI failure)

The bare `import("playwright")` resolved relative to the script's own
directory (scripts/), not the cwd — so `cd clients/web` in the npm script
never made it resolvable. It only passed locally because an ancestor
node_modules happened to carry playwright; CI has none, so it failed with
"Cannot find package 'playwright'". Resolve it explicitly from
clients/web via createRequire, independent of cwd and ancestor dirs.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XNdjEPKLG637X8YmhDiEk5

* ci: address second review on the prod-web-server helper

- waitForReady now records the last non-ok status and includes it in the
  timeout message, so a server that boots but persistently answers 500
  (broken dist / injection failure) reports "server did not start … (last
  response: HTTP 500)" instead of a bare timeout that points at the wrong
  thing. Keeps polling on non-ok (a warming server may answer 503).
- Add a child 'error' handler so a spawn-level failure surfaces as the
  smoke's FAILED line instead of an uncaught raw stack; readiness and the
  child-exit race both report it.
- Drop the unused isExited/exitCode/child exports from the helper API.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XNdjEPKLG637X8YmhDiEk5

* ci: reframe browser smoke around uncaught pageerror; fix stop() edge

Third-review findings.

1. The `Module "…" has been externalized` string can't fire against a Vite 8
   *prod* bundle — verified end-to-end against the installed vite@8.0.0: a
   node: import reaching the browser graph is a BUILD-time warning, and the
   shipped stub is a silent `module.exports = {}`. The real #1612 manifestation
   is the first *call* into that empty stub throwing a TypeError at module init
   (confirmed: injecting a used `node:fs` import fails the smoke with
   "readFileSync is not a function"; an unused one ships {} and is harmless).
   So the signature machinery was dead against the bundle it runs on — dropped
   it. The smoke now asserts exactly what it verifies: the prod bundle boots and
   paints with no uncaught page error. Reworded the script header, the
   AGENTS.md bullet, and the README row to match. Console errors stay
   diagnostic-only.

2. The helper's child 'error' handler set `exited = true`, but Node emits
   'error' for a failed kill/send too (child still alive) — so `stop()`
   (guarded on `exited`) would skip the SIGTERM and orphan the launcher on the
   port. Track the error separately (`childError`); `bootFailed()` = exited ||
   childError, while `stop()` still SIGTERMs a live child.

Docs: fixed the stale AGENTS.md claim that `cd clients/web` makes
`import("playwright")` resolve (createRequire does, cwd-independently; the cd is
only for `npx playwright install`), and noted the shared
scripts/lib/prod-web-server.mjs helper on both smoke bullets.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XNdjEPKLG637X8YmhDiEk5

* ci: also hard-fail the async half of the crash class (fourth review)

page.on("pageerror") fires for uncaught SYNCHRONOUS exceptions only. The
async twin of the #1612 shape — the same empty-stub TypeError reached
through an await/.then(), or a failed dynamic import (this app lazy-loads
chunks) — lands on the console channel as `Uncaught (in promise) …` /
`Failed to fetch dynamically imported module`, which were diagnostic-only,
so the smoke would have passed. Hard-fail console errors matching
/^Uncaught\b|Failed to fetch dynamically imported module/; every other
console error stays a printed non-fatal note. The prefixes are unambiguous
(a font/CDN miss reads "Failed to load resource: net::ERR_…"; React
warnings never start with "Uncaught"), so this can't reintroduce the flake
the earlier round fixed. Verified: an unhandled rejection at module init
now fails the smoke where it previously wouldn't.

Also prod-scope the AGENTS.md note that the "externalized" string isn't a
runtime message (under `npm run dev` Vite's stub is a Proxy that
console.warns it), and document both the sync and async failure signals.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XNdjEPKLG637X8YmhDiEk5

* docs: reword smoke success line + README to two-channel wording (fifth review)

After the async hard-failure signature, the assertion spans both the
pageerror (sync) and console (unhandled rejection / failed dynamic import)
channels. The OK console line and the README smoke row still said "page
error"; match the two-channel wording already in the AGENTS.md bullet.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XNdjEPKLG637X8YmhDiEk5

* ci: correct the playwright-package-resolution hint (sixth review)

The catch around requireFromWeb("playwright") advised `playwright install
--with-deps chromium`, but that installs browser binaries, not the npm
package — and the npm script already ran `playwright install` a step
earlier. A failure there means the package isn't resolvable from
clients/web, so the actionable fix is `npm install` at the repo root (the
postinstall cascade installs clients/web's devDependencies). The
chromium.launch() catch keeps its --with-deps advice (correct for the
missing-system-libraries case).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XNdjEPKLG637X8YmhDiEk5

---------

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-24 19:11:46 -04:00
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prod-web-server.mjs ci: add headless-browser boot smoke for the web client (#1615) (#1768) 2026-07-24 19:11:46 -04:00