v0.3.2 - Fix desktop notification reliability

What's Fixed

Desktop notifications now work reliably

The notification system had several bugs causing silent failures:

1. Auto-create missing preferences — Users without a NotificationPreference record (anyone who hadn't visited settings) had ALL notifications silently skipped. The worker now auto-creates default preference records so notifications work out of the box.

2. Error logging — All silent .catch(() => {}) blocks replaced with console.error logging across the notification pipeline (worker, task routes, preferences). Failures are now visible in server logs.

3. End-to-end push test — New "Test Push Notification (Server)" button in notification settings sends a real push through the server pipeline to ALL registered devices. Useful for verifying cross-device delivery.

4. VAPID key validation — Server now logs a clear warning on startup when VAPID keys are missing, instead of silently disabling push.

Docker build fix

5. TypeScript narrowing error — Fixed session.user possibly-undefined error in notification preferences PATCH handler that broke docker build. Extracted session.user.id into a local variable before the async callback.

Files Changed

• src/lib/notification-worker.ts — Auto-create preferences, error logging
• src/app/api/push/test/route.ts — New test push endpoint
• src/app/api/notifications/preferences/route.ts — Fix TS narrowing for Docker build
• src/components/settings/notification-settings-card.tsx — Dual test buttons
• src/instrumentation.ts — VAPID validation logging
• Task route handlers — Error logging for reminder scheduling

Testing

• 1539/1539 tests passing
• 6 new tests added (3 for missing prefs, 3 for push test endpoint)
• Docker build verified