feat: 10 killer features — Nova-3, Sonnet, clause library, privileged mode, billable time, confidence highlighting #4774

Originally written by @ccantynz-alt on GitHub.
Imported from https://github.com/ccantynz-alt/voxlen/pull/27

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Summary

• Deepgram Nova-3 — upgraded from Nova-2 on both desktop and iOS, tighter endpointing (200ms), no_delay=true for real-time feel
• Sonnet 4.6 grammar AI — upgraded from Haiku on desktop and iOS keyboard for better legal/accounting language
• Privileged Mode — Rust-side enforcement forces offline-only STT (WhisperLocal), blocks all cloud calls; shield indicator in TitleBar; privileged-mode-active event emitted on dictation start
• Clause Library — 15 built-in legal/accounting clauses + 5 document templates, voice-insertable ("insert indemnity clause", "new NDA"), searchable UI panel in Sidebar
• Word-level confidence highlighting — low-confidence words shown in amber with confidence % tooltip
• Speaker diarisation labels — speaker names displayed above each segment when diarisation is on
• Billable time tracking — "log thirty minutes" / "log one hour" voice commands create time entries in Flywheel; Time tab shows hours, billable value, entry list
• Latin phrase recognition — 26 phrases auto-formatted (inter alia, res judicata, prima facie, ultra vires...)
• Legal currency formatting — spoken amounts → symbols (£, A$, $, €)
• Legal Mode + Jurisdiction settings — wired into smart format pipeline
• iOS entitlements + privacy manifest — App Groups entitlements for both targets, PrivacyInfo.xcprivacy for iOS 17+
• API spec updated — new fields, events, Web SDK section, Sonnet references

Test plan

• Deepgram streaming connects and produces transcriptions faster than before
• Grammar correction uses Sonnet (check API logs)
• Privileged Mode toggle in Settings → shield shows in TitleBar → dictation uses WhisperLocal
• Say "insert indemnity clause" → clause text appears in transcript
• Say "new NDA" → NDA section headings inserted
• Low-confidence words appear in amber with tooltip
• Say "log thirty minutes" → entry appears in Flywheel > Time tab
• "inter alia" spoken → appears correctly in transcript
• iOS keyboard: Deepgram connects with Nova-3 model
• iOS keyboard: Xcode project can be created using entitlements files

https://claude.ai/code/session_011MFNHeFKrhfuSrEYVgrdyr EOF )

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