- Add '?' button in expert mode status bar that opens help overlay
- Search input with fuzzy search (same algorithm as command palette)
- 43 help articles covering major features (sensing links, Fresnel zones,
detection quality, presence prediction, fall detection, etc.)
- Articles stored as static JSON (dashboard/help_articles.json)
- No server round-trip - loads articles client-side
- Category filter buttons for easy navigation
- Keyboard shortcut: Ctrl+? to open help overlay
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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