Reworks the editor playground into a tabbed showcase:
- Rich text & blocks: drag-to-reorder handles, bubble/slash menus, and a live output panel (block/word counts, selection readout, document JSON).
- Multiplayer: two CRDT replicas synced over an in-memory channel with remote cursors, an in-sync indicator, and a Connected/Offline toggle that demonstrates divergence → convergence.
Also removes the focus outline on the contenteditable (outline: none on the editable surface).
A live @robonen/editor instance (default registry) as a doc section at /editor/playground: a reactive formatting toolbar, the bubble/slash menus, and a sample document exercising every block and mark — styled with the docs design tokens and wrapped in <ClientOnly> for SSR. Links it from the editor intro.
Setting a custom property to 'initial' (a CSS-wide keyword) computes to the guaranteed-invalid value, so getComputedStyle returns '' — correct per spec and now implemented by jsdom 29 (the deps bump from jsdom 28). Use a normal token ('start') so the read returns the value.
selectionchange is dispatched on a macrotask, so awaiting nextTick (microtasks) didn't wait for the editor to sync the native selection into the model — the assertion saw the initial selection. Poll with vi.waitFor instead. (Surfaced now that per-package CI runs editor's browser tests, which the root vitest projects list omitted.)
An intro.vue landing for all 12 packages, plus a multi-section crdt guide (Concepts, Primitives, Replication & Sync, and an interactive convergence Playground).
robonen