- intercept file paste and drop before CodeMirror inserts file text
- reconfigure localized placeholders without remounting the editor
- add regression coverage and document the CodeMirror review
Replace the single-column-only feed with a max-columns model: one
Columns setting (1 / 2 / 3 / ∞) where 1 is the reading list and
anything wider packs into a Google-Keep-style column grid. There is
deliberately no separate list/grid mode — the setting is a ceiling,
and widths that only fit one column fall back to the flow list.
- ColumnGrid: absolute-positioned packing that only translates cards,
so appends and reorders never remount them; sticky column assignment
keeps existing cards in place when new memos arrive; tiles are capped
at 360px with a fade; columns clamp to 420px and center.
- Column one is the action column: the composer and active filters
stack as its first tile, and a just-created memo is pinned directly
beneath them.
- Multi-column always renders compact cards (policy centralized in
PagedMemoList and threaded through renderer(memo, { compact })).
- Setting persists in ViewContext localStorage; the settings menu
derives its options from the context's canonical value list.
Rebuild the memo editor as a single CodeMirror 6 "decorated source"
editor. The document is the raw markdown, stored verbatim and styled in
place (markers stay visible), so the editor never serializes a tree back
to markdown — removing the round-trip fidelity bug class (inline images,
setext headings, ordered-list indentation, HTML entities) that the old
editor needed per-case patches for.
- MemoEditor/Editor: CodeMirror 6 + lang-markdown (GFM). Tokens, heading
lines, #tag/@mention, and the autocomplete popover are styled in plain
CSS (Editor/editor.css) with theme tokens, not a CSS-in-JS theme.
- Tab/Shift-Tab nest/outdent list items (marker-aware, ordered items
renumbered so nesting is CommonMark-valid); Escape blurs; #tag
autocomplete sourced from useTagCounts.
- Focus-mode toolbar reimplemented as markdown-text ops; active state read
from the Lezer tree via the backend-agnostic formatting/commands catalog.
- Remove the old serialize-back-to-markdown editor (its Editor dir,
PlainEditor, the editor-mode system) and its now-unused dependencies
(marked, textarea-caret, and the rich-text editor packages).
- Consolidate toolbar components under Toolbar/. Read-only MemoContent
rendering is unchanged.
