[Sync Framework] Migrate note-taker to sync framework (polling trigger)

[Michael-Obele]

Overview

Migrate note-taker to the centralized sync framework. This migration tests the PollingTrigger — note-taker currently uses polling-based sync with exponential backoff (2min base, 10min max) instead of event-triggered auto-backup.

Design doc: docs/plans/2026-06-21-sync-framework-design.md

Current state

• src/routes/apps/(app)/note-taker/+page.svelte — polling-based sync with setInterval, exponential backoff on failure, syncInFlight state
• src/routes/apps/(app)/note-taker/states.svelte.ts — custom PersistedState wrapper with IndexedDB adapter (noteAdapter), toServerFormat()/fromServerFormat() compatibility layer
• src/lib/remote/note-taker.remote.ts — getNotes (query), syncNoteData (command), createNoteForm/updateNoteForm (forms), deleteNote (command)

Migration steps

• Create app DB with createReactiveDB:

  const db = createReactiveDB({
    name: 'note-taker',
    version: 1,
    stores: {
      notes: { keyPath: 'id' },
    },
  });

• Replace noteAdapter + PersistedState with db.notes.liveAll()
• Migrate note-taker.remote.ts to factory functions
• Create SyncManager with polling trigger:

  strategy: serverWins,  // server is source of truth for notes
  trigger: 'polling',
  pollingInterval: 120000,      // 2 minutes (keep existing base)
  maxPollingInterval: 600000,   // 10 minutes (keep existing max)

• Preserve existing form-based CRUD (createNoteForm, updateNoteForm) — these stay as-is, only the sync layer changes
• Update +page.svelte — replace polling logic with sync.handleSync() (PollingTrigger handles interval + backoff automatically)
• Run bun check + svelte-autofixer
• Test polling sync + backoff on network failure

What stays app-specific

• Form-based CRUD operations (createNoteForm, updateNoteForm, deleteNote)
• Data type (Note)
• serverWins merge strategy (server is source of truth)

Prisma models (existing)

• Note → store notes

Blocked by

• [Sync Framework] Build centralized sync framework in src/lib/sync/ #23 — Framework PR
• [Sync Framework] Migrate medication-tracker to sync framework (pilot) #24 — Medication-tracker pilot