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/i18n/locales/en.json

@@ -266,6 +266,24 @@
       "live_photo_entry": "Photo: {{caption}}",
       "live_photo_entry_plain": "Photo captured",
       "live_undo_photo_hint": "Photo saved",
+      "live_voice_btn": "Voice memo",
+      "live_voice_hint": "Record a short voice memo (max. 60 seconds).",
+      "live_voice_record": "Start recording",
+      "live_voice_stop": "Stop recording",
+      "live_voice_recording": "Recording {{time}}",
+      "live_voice_save": "Save",
+      "live_voice_saving": "Saving…",
+      "live_voice_retake": "Record again",
+      "live_voice_mic_denied": "Microphone access denied or unavailable.",
+      "live_voice_record_failed": "Recording failed. Please try again.",
+      "live_voice_unavailable": "Voice memo unavailable",
+      "live_voice_too_large": "Recording is too large. Please record a shorter memo.",
+      "live_voice_error": "Could not save voice memo.",
+      "live_voice_entry": "Voice memo: {{caption}}",
+      "live_voice_entry_plain": "Voice memo",
+      "live_voice_caption_label": "Caption (optional)",
+      "live_voice_caption_placeholder": "e.g. radio call with harbour master",
+      "live_undo_voice_hint": "Voice memo saved",
       "live_comment_btn": "Comment",
       "live_comment_placeholder": "Enter text…",
       "live_comment_confirm": "Log entry",