Remove all theme switching, creation, and management functionality
from the app — backend (Rust theme module, Tauri commands, menu items,
startup tasks, vault seeding), frontend (useThemeManager, ThemePropertyEditor,
themeSchema, command palette Appearance group, settings panel appearance
section, isDarkTheme prop chain), mock data, and all related tests.
Editor styling via theme.json/EditorTheme.css is preserved (not user theming).
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Use untyped function references to avoid conflicts with
posAtCoords overloaded type signatures.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
CSS zoom on document.documentElement causes a coordinate space mismatch
between mouse event clientX/Y (viewport space) and Range.getClientRects()
(CSS space), breaking CodeMirror's click-to-position mapping. The previous
requestMeasure() fix only recalibrated cached geometry, not this mismatch.
New approach: zoomCursorFix extension patches posAtCoords/posAndSideAtCoords
on the EditorView instance to use document.caretRangeFromPoint() — the
browser's native, zoom-aware API — with coord-adjustment fallback.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Adds line numbers, current line highlight, and syntax highlighting
(YAML frontmatter keys/values, --- delimiters, markdown headings).
Extracted useCodeMirror hook and frontmatterHighlight extension.
Preserves wikilink autocomplete, Cmd+S save, and Escape dismiss.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
