v0.18.0

Features

• Audio — New native Audio block tool. Now-playing card with cover art (lazy music-metadata extraction), a waveform canvas with click/drag seek, transport controls (play/pause, volume, playback speed, loop, keyboard shortcuts, persisted preferences), file and URL upload, paste handling routed away from the File block, read-only support, and i18n across all locales. The player card is a full-bleed redesign — a tall cover panel (music-note placeholder when there is no art), a hero waveform scrubber with rounded bars, a slim transport bar, and motion polish.
• Media — Image, video, and audio blocks now accept any file of their media family (image/*, video/*, audio/*) by default. Restrict the accepted types through the existing types config, which now accepts both exact MIME types (image/png) and family wildcards (image/*).

Bug Fixes

• Types — Export File, Audio, and Video (and their data/config/uploader types) and add the file/audio/video keys to defaultBlockTools from the @jackuait/blok/tools types entry. The runtime already exported these tools; consumers no longer need a local ambient type shim to import them.

Maintenance

• Playground — Audio block states in the block-states gallery (real ID3-tagged track and a "No cover art" state) plus an e2e harness for insert/upload/play/seek.