- Undo walks to parent node in history tree, redo follows
last-active-child for correct branch tracking after forks
- HistoryTree tracks branch recency via last_active_child field,
updated on push() and checkout() path transitions
- SVG files can be dragged from Finder onto the canvas window
- Edit menu with Undo/Redo items, command palette entries
- 3 new tests: undo, redo, redo-after-fork branch behavior
- 29 tests passing, clippy clean
- Boolean operations (union, intersection, difference, xor) via i_overlay
with Path shape rendering using earcutr triangulation
- Visual undo tree with branching history, checkout, and fork (Cmd+H)
using Arc-based snapshots for structural sharing
- Consistent Augmented Canvas branding across app title, MCP server,
CLI help text, and error messages
- macOS .app bundle script and Info.plist for Finder integration
- New MCP tool: boolean_op for agent-driven shape composition
- 26 tests passing (5 boolean, 6 history, 15 existing)
- Convert flat project to Cargo workspace (crates/agcanvas, crates/agcanvas-mcp)
- Add drawing layer: rectangles, ellipses, lines, arrows, text with select/move/resize
- Add Mermaid diagram rendering via mermaid-rs-renderer
- Add agcanvas-mcp: MCP server bridge for Claude Code, OpenCode, and Codex
- Add toolbar UI with keyboard shortcuts (V/R/E/L/A/T) and shape interaction
- Add example MCP configs for Claude Code, OpenCode, and Codex
- Update README with full feature docs, MCP setup, and updated architecture
