Add voice memos to live journal and event log.

Record short E2E-encrypted audio attachments from the live log, link them to events via __live:voice markers, and play them back in the stream and chronological event table.

Co-authored-by: Cursor <cursoragent@cursor.com>

client/src/services/voiceAttachments.ts

@@ -0,0 +1,103 @@
+import { db } from './db.js'
+import { getActiveMasterKey } from './auth.js'
+import { getLogbookKey } from './logbookKeys.js'
+import { encryptJson } from './crypto.js'
+import { syncLogbook } from './sync.js'
+import { PlausibleEvents, trackPlausibleEvent } from './analytics.js'
+
+async function getEncryptionKey(logbookId: string): Promise<ArrayBuffer> {
+  const key = await getLogbookKey(logbookId) || getActiveMasterKey()
+  if (!key) throw new Error('Encryption key not found. Please log in.')
+  return key
+}
+
+export async function saveEntryVoiceMemo(options: {
+  logbookId: string
+  entryId: string
+  audioDataUrl: string
+  mimeType: string
+  durationSec: number
+  caption?: string
+  analyticsContext?: string
+}): Promise<string> {
+  const {
+    logbookId,
+    entryId,
+    audioDataUrl,
+    mimeType,
+    durationSec,
+    caption = '',
+    analyticsContext = 'logbook'
+  } = options
+  const masterKey = await getEncryptionKey(logbookId)
+  const voiceId = window.crypto.randomUUID()
+  const voicePayload = {
+    audio: audioDataUrl,
+    mimeType,
+    durationSec,
+    caption: caption.trim()
+  }
+
+  const encrypted = await encryptJson(voicePayload, masterKey)
+  const now = new Date().toISOString()
+
+  await db.voiceMemos.put({
+    payloadId: voiceId,
+    entryId,
+    logbookId,
+    encryptedData: encrypted.ciphertext,
+    iv: encrypted.iv,
+    tag: encrypted.tag,
+    updatedAt: now
+  })
+
+  await db.syncQueue.put({
+    action: 'create',
+    type: 'voiceMemo',
+    payloadId: voiceId,
+    logbookId,
+    data: JSON.stringify({
+      encryptedData: encrypted.ciphertext,
+      iv: encrypted.iv,
+      tag: encrypted.tag,
+      entryId
+    }),
+    updatedAt: now
+  })
+
+  trackPlausibleEvent(PlausibleEvents.VOICE_MEMO_UPLOADED, { context: analyticsContext })
+  if (analyticsContext === 'live_log') {
+    trackPlausibleEvent(PlausibleEvents.LIVE_LOG_VOICE_UPLOADED)
+  }
+  syncLogbook(logbookId).catch((err) => console.warn('Background sync failed:', err))
+  return voiceId
+}
+
+export async function deleteEntryVoiceMemo(logbookId: string, voiceId: string): Promise<void> {
+  const now = new Date().toISOString()
+  await db.voiceMemos.delete(voiceId)
+  await db.syncQueue.put({
+    action: 'delete',
+    type: 'voiceMemo',
+    payloadId: voiceId,
+    logbookId,
+    data: '',
+    updatedAt: now
+  })
+  syncLogbook(logbookId).catch((err) => console.warn('Background sync failed:', err))
+}
+
+/** Deletes the newest voice memo for an entry; returns its id or null. */
+export async function removeLastVoiceMemoForEntry(
+  logbookId: string,
+  entryId: string
+): Promise<string | null> {
+  const memos = await db.voiceMemos.where({ entryId }).toArray()
+  if (memos.length === 0) return null
+  memos.sort(
+    (a, b) => new Date(b.updatedAt).getTime() - new Date(a.updatedAt).getTime()
+  )
+  const lastId = memos[0].payloadId
+  await deleteEntryVoiceMemo(logbookId, lastId)
+  return lastId
+}