- Implement Obsidian/Bear-style live preview via CM6 ViewPlugin + decorations
- Headings: ## markers hidden, text rendered large — revealed on cursor line
- Bold/italic: ** and * markers hidden, text styled — revealed on cursor line
- Links: [text](url) rendered as styled text — revealed on cursor line
- Inline code: backticks hidden, content styled with monospace — revealed on cursor line
- Horizontal rules rendered as styled <hr> elements
- Add Playwright test verifying reveal-on-focus behavior
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- Install CM6 packages (state, view, lang-markdown, theme-one-dark, commands, language)
- Replace Editor placeholder with real CodeMirror 6 instance
- Add realistic markdown content to all mock entries in mock-tauri.ts
- Wire up note selection: clicking a note in NoteList loads its content in the editor
- Dark theme matching app colors, line numbers, active line highlighting, line wrapping
- Update NoteList with selected state styling
- Update Playwright screenshot test to capture editor with note selected
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>