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ci: shard Playwright runs per browser project - #193
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The suite grew past what a single serial job can finish inside the 30-minute timeout — every recent run was killed at 30m and reported as cancelled. One matrix shard per Playwright project (Chrome, Firefox, WebKit, mobile Chromium) keeps each job well under the limit, installs only the browser it needs, and fails independently per engine.
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justin-schroeder
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Review notes: workflow-only change; matched the project names exactly against playwright.config.ts (testMatch per project is preserved — the mobile shard runs only synthetic-drag specs as before). The mobile shard reuses chromium so no extra browser download. The push triggered by merging this is itself the validation run.
This was referenced Jun 11, 2026
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Fixes the CI timeouts on
release/0.6.0.What was happening
Every recent run on this branch shows as cancelled — they were being killed by
timeout-minutes: 30(the latest ran exactly 30m15s). The campaign grew the suite from 58 to ~150 tests, and the workflow runs all four Playwright projects serially in one job withworkers: 1.Fix
Matrix shard per Playwright project (Desktop Chrome / Firefox / WebKit / iPhone 13 Chromium):
--project), comfortably inside the timeoutplaywright install --with-deps <browser>)fail-fast: falseso one engine's failure doesn't mask the othersThe very next push to this branch (this merge) validates it.