4grayandClaude Fable 5.1 8e63326c80 test(performance): add the J1 launch-to-usable journey benchmark ...

Implements plan items A1, A3 (J1 only) and the minimal A4 from
.plans/2026-09-25-performance-journeys-ratchet.md.

- journey-renderer-probe.ts: init-script probe counting DOM mutations,
  layout shifts and long tasks until the first source card is visible on
  /workspace with the splash removed; unit-tested with jsdom fixtures.
- journey-main-ipc-capture.ts: counts bridge invocations from the preload's
  renderer-API trace channel up to a sentinel call the probe fires, so the
  IPC counter is exact without touching production code.
- launch.journey.ts + playwright.journeys.config.ts: seeded profile (one
  M3U source, one Xtream portal on the loopback mock), one warm-up and five
  measured iterations, fresh process and data directory each, writing
  dist/performance/journeys/<timestamp>/summary.json with exact counters
  and P50/P90 wall-clock.
- Nx target electron-backend-e2e:journeys and root script perf:journeys.
- docs/architecture/performance-journeys.md, README, context and
  validation map entries.

renderer.cdTicksToFirstCard and main.sqlStatementsBeforeReadyToShow are
reported as unavailable with the reason instead of being faked.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

2026-09-26 11:11:53 +02:00

..

architecture

test(performance): add the J1 launch-to-usable journey benchmark

2026-09-26 11:11:53 +02:00

development

test(electron): fix Windows cleanup and retain packaged smoke diagnostics (#1665)

2026-09-23 22:55:48 +02:00

maintenance

test(performance): add the J1 launch-to-usable journey benchmark

2026-09-26 11:11:53 +02:00

superpowers

feat(epg): rebuild the programme guide for M3U playlists (#1560)

2026-09-06 18:47:25 +02:00