v0.3.0-rc.2

Fix

• Fixed worker filename regex to match Vite-generated hashes with underscores (e.g. shared-worker-Bw4_Rekb.js)
• Updated rtc-agent-setup.js regex from /[A-Za-z0-9]+/ to /[\w-]+/ to match underscores and hyphens

Breaking Changes (since 0.2.x)

• onUIUpdate callback parameter changed from UIUpdateEvent to UIUpdatePayload (includes { event, seq })
• UIUpdateListener signature changed to (event, seq)
• publish() is now async (fire-and-forget pattern recommended)

See commit history for full details.