Pentool v0.4.0 — pages and .pen composition

Pentool v0.4.0 — pages and .pen composition

Pentool v0.4.0 turns .pen into a multi-page, composable design format while
keeping every operation available without a browser.

Highlights

• Format v3 adds ordered pages with independent canvases and layer stacks.
• v1/v2 files remain readable as page-1 and upgrade without visual changes.
• Page-aware CLI editing, discovery, geometry, export, and browser controls.
• Transactional .pen import with dry runs, revision guards, backups, placement
  transforms, deterministic ID prefixes, font deduplication, and canvas expansion.
• Unknown source extension fields survive imports.
• Search supports compact pagination with --offset and --limit.
• Indexed layer/object lookup improves targeted agent operations.
• A repeatable benchmark command covers parsing, validation, indexing, search,
  one-object editing, SVG generation, and optional PNG rendering.
• Browser object results are debounced and bounded, and .pen files can be
  imported into the active page through the same Rust engine used by the CLI.

Examples

pentool page design.pen add mobile --name Mobile --width 390 --height 844
pentool --page mobile import design.pen icons.pen --prefix icons --at 100 80 --dry-run
pentool --page mobile search design.pen arrow --offset 0 --limit 25
pentool --page mobile export design.pen mobile.png
pentool benchmark --layers 1000 --objects 100000

Imports copy editable content; they are not live links. Every committed import
creates a numbered recovery snapshot beside the destination.

Full Changelog: v0.3.0...v0.4.0