cellajs

Drive two signed-in browser tabs with playwright to verify or diagnose realtime entity sync (CDC → SSE → lazy-sync scheduler → cache patch) at runtime.

Drive a pnpm cella sync or analyze for an app forked from the cella template. Covers conflict triage (pinned, both-added tests, fork markers), migration bookkeeping, silent auto-merge damage checks, and the drift decision matrix that keeps fork friction…

Build, launch, and drive the cella frontend to verify UI changes at runtime.

Apply pending cella upstream migrations to an app after a sync. Computes the pending set from cella/migrations/manifest.json, runs each migration's codemod or manual steps in order, gates on pnpm check, and records what was applied.