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* fix(rich-markdown-editor): reliable image selection + resize and broken-image polish - Reactive editability. The editor runs with shouldRerenderOnTransaction:false, so a node view that read editor.isEditable once at render kept a stale value after setEditable() toggled (e.g. an agent stream settling into the doc), leaving a pasted image showing read-only affordances and code blocks stuck on their read-only label until a full refresh. A shared useEditorEditable hook subscribes to the editor's update/transaction events so both node views track editability reactively. - Deterministic click-to-select. A handleClickOn plugin sets the image's NodeSelection on a plain click so selecting never depends on ProseMirror's click-vs-drag arbitration; grab-anywhere drag-reorder is kept, and modified clicks (Cmd/Ctrl to follow a linked badge) fall through. - Resize commits once. The width previews in local state during the drag and commits to the node once on pointer-up (or pointer-cancel), so a resize is a single undo step and an interrupted drag isn't lost. - Broken-image placeholder. A src that fails to load renders as a visible box with its alt text and stays selectable, instead of collapsing to a bare broken-icon. * fix(rich-markdown-editor): keep bare URLs and autolinks bare on serialize The normalizing serializer rewrote a bare URL or <url>/<email> autolink to [url](url) / [a@b.com](mailto:a@b.com) on every save, churning every README's links. postProcessSerializedMarkdown now collapses a link back to its bare form when the visible text already equals the destination (a plain http(s) URL, or an email behind mailto:) — GFM re-autolinks it, so the round-trip is identical with a far quieter diff. Titled links, explicit links, and any link inside a fenced/inline code region are left untouched. Idempotent. * feat(rich-markdown-editor): linkify a selection when a URL is pasted over it Pasting a single URL (or a bare www. host / email) over a non-empty text selection within one block now wraps the selection in a link, keeping the visible text. www. gets https://, an email gets mailto:, and the href is scheme-sanitized (javascript:/data: rejected; mailto: requires a real user@host address). Collapsed carets, cross-block selections, multi-word pastes, node selections, and code contexts fall through to normal paste. * chore(rich-markdown-editor): drop useless String.raw in highlight.ts biome 2.0's noUselessStringRaw flags HIGHLIGHT_BODY — its pattern has no escape sequences, so String.raw is equivalent to a plain template literal (byte-identical value; interpolated into the other String.raw regexes unchanged). Pre-existing on staging; the repo-wide lint gate blocks CI on it.