v0.25.0

Features

• Spacer — New adjustable-height spacer block. Drag either edge to resize (dual-edge grips), with a text-block-height floor, snap-to-sibling and snap-to-column alignment guidelines, an on-edge capsule resize pill, and accent hover cues. Fully invisible in read-only/published renders.
• Image — Uploads are now automatically compressed and re-encoded (compress, on by default), with opt-in smaller output formats. In-cell images gain a resize floor and fluid chrome via container queries.
• Toolbar — Cmd/Ctrl+Slash opens the block menu in read-only mode.

Bug Fixes

• Table — Large batch of Notion-parity fixes: paste-header handling, the cell color picker, the cell menu, arrow-key navigation between cells, and column width reset. The cell box now follows the caret (instead of the pointer) and the resize handle no longer forces overflow. Focus stays inside a cell when its content is deleted, the caret stays put after clearing a multi-cell selection, multi-line cell selections merge into one rounded shape, drag-selecting several lines within a single cell works, and list items scale to the cell font instead of outsizing sibling paragraphs.
• Columns — Stranded resize separators left behind by removing a column no longer render as a phantom column.
• Core — Never Tab-indent a block into a tool-owned container.
• Toolbox — Keep plus-button blocks on a table out of its cells, and anchor fuzzy search at word boundaries.
• Selection — Stop hijacking intra-line text drags inside table cells.
• Embed — Validate stored URLs at render time (stored-XSS guard).
• List — Keep bullet markers non-editable so Enter never ghosts an item.
• Toolbar — Read-only drag-handle refinements: announce it as a menu button, show a pointer cursor, and drop the ⌘/ and "Drag to move" hint lines; no read-only handle appears beside blocks that paint nothing.
• Tunes — Hide the copy-link shortcut hint in read-only mode.
• Styles — Right contentAlign no longer collapses into centering, and preflight resets are scoped to @layer base so Blok's own utilities win.
• React — Guard against stale dist exports and a StrictMode readiness race.