feat: live dictation demo + ethics/privacy positioning for lawyers #4747

Originally written by @ccantynz-alt on GitHub.
Imported from https://github.com/ccantynz-alt/voxlen/pull/54

Summary

• Live dictation demo on the landing page — visitors can watch an animated simulation of AI grammar correction on legal text, or use their own microphone (Web Speech API). No account required. Shows the core product value in 10 seconds.
• Ethics/privacy section — "The only dictation tool lawyers can use without calling ethics counsel" — ABA Rule 1.6(c) compliance comparison against Wispr Flow, Otter.ai, and Dragon, with a clear breakdown of Voxlen's privacy architecture
• Android false advertising removed from hero subheadline and platform badges (Android keyboard not built)

Test plan

• Click "Watch demo" — animated typewriter shows raw legal dictation → AI corrects punctuation, capitalisation, number formatting
• Click "Try another" — cycles through different legal phrase examples
• On Chrome/Edge: "Use my microphone" button appears and records real speech
• Ethics section renders risk table (red) and Voxlen guarantees (green)
• ABA Rule 1.6 reference link opens correct ABA page
• No Android references remain in hero section

https://claude.ai/code/session_011MFNHeFKrhfuSrEYVgrdyr

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