- Move setOpacity to core editor action (packages/core/src/editor/nodes.ts)
so it is testable directly without duplicating logic in tests
- Replace external window listener with tinykeys bindings in
registerKeyboardShortcuts, reusing shared input/focus guards
- Add 20 bindings for Digit0-9 and Numpad0-9 with modifier guards
- Implement Figma-style multi-digit buffer: 2→20%, 28→28%, 00→0%, 100→100%
with 400ms timeout and auto-apply at 3 digits
- Simplify selection.setOpacity command to delegate to editor.setOpacity
- Rewrite unit tests to call editor.setOpacity directly
- Add ofetch to dependencies (was imported but missing from package.json)
- Update CHANGELOG