The playwright.config.ts had `reuseExistingServer: !!process.env.CI`
which meant CI would reuse (expect) an existing server while local
dev would start one. This is backwards — in CI Playwright should
manage the server, and in local dev you likely already have one
running.
Flip to `!process.env.CI` and remove the `CI: ""` env override
from the workflow.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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