v0.13.0

Changed

• Pages are at site/pages/, a git repository of its own, not site/data/pages/. History commits to it and Sync pushes it. site/data/ is state only and never in git. $app->pages is the root, and App refuses to boot without site/pages/. Build output, deploy.php shared directories and backups follow the new path.
• A leading _ marks the system's own files. index.json is _index.json, data.json is _data.json, data.autosave.json is _draft.json, and a file's metadata {name}.index.json is _{name}.json. Definitions under views/, fields/, fieldtypes/, roles/ and files/ follow. PageFiles::store() and upload() refuse a name starting with _.
• Image variants are named photo~card.jpg instead of photo.card.jpg. A ~ cannot appear in V::filename(), so an upload can't take over a variant's URL.
• Draw presets are configured under images.drawings instead of images.presets.
• Sign-in happens over the site page, with the return path in the query, instead of a separate login screen.

Fixed

• History index sync and thumbnail issues found in review.

Existing sites need their content and descriptors renamed. See the repository's upgrade log for the steps.