* fix(browser): derive Chrome launch readiness from a single CDP diagnostic (#82904)
The pre-fix launch path used `isChromeReachable` (a lightweight HTTP
`/json/version` probe) to decide failure, then called the stronger
`diagnoseChromeCdp` only to format the thrown error. On macOS cold
starts where the HTTP probe transiently fails *between* the polling
loop and the diagnostic call, the runtime would throw
"Failed to start Chrome CDP on port ... { ok: true, wsUrl: ... }"
— a self-contradicting error containing a successful diagnostic
result. Per #82904 this is the actual user-visible bug.
Capture `diagnoseChromeCdp` ONCE after the polling loop and use it for
both the decision and the error text. The diagnostic helper already
includes the lightweight reachability check and adds a websocket
`Browser.getVersion` health command, so it is strictly stronger than
the HTTP probe; if `diagnoseChromeCdp` returns ok the launch
genuinely succeeded.
The existing `withMockChromeCdpServer` success test in
chrome.internal.test.ts still exercises this code path end-to-end
(real HTTP server + real websocket handshake), so the regression-safety
case is covered. The asymmetric `probe-fails-but-diagnostic-succeeds`
scenario is hard to mock without restructuring the existing test
harness; this commit ships the fix and relies on the upstream
ClawSweeper review criteria (manual managed-Chrome cold-start proof)
plus the standalone real-behavior probe in the PR body.
* fix(browser): import ChromeCdpDiagnostic type from chrome.diagnostics
The annotation `let finalDiagnostic: ChromeCdpDiagnostic | null` referenced
a type that was only re-exported (not imported) inside chrome.ts, causing
oxlint/tsc to read it as the implicit `error` type and fail check-lint,
check-prod-types, check-test-types, etc. Add the type to the existing
chrome.diagnostics.js import block.
* fix(browser): preserve Chrome launch diagnostic fallback
* test(browser): satisfy launch diagnostic lint
* fix(browser): keep Chrome launch readiness scoped
* test(browser): answer CDP launch mock probe
---------
Co-authored-by: hclsys <hclsys@users.noreply.github.com>
Co-authored-by: Peter Steinberger <steipete@gmail.com>
42435d110b