v0.2.0

Added

• Worktree mode gating with four primary tools for a tighter UX.
• Worktree mode state tracking and tests for mode persistence.
• CI workflow, Dependabot configuration, and contributor docs.
• Bun security scanner configuration and npm audit in CI.

Changed

• Default worktree root is now /.worktrees/.
• Session creation reuses existing worktrees when available.
• Documentation updated for the new tool surface and workflows.

Fixed

• Safer command quoting for displayed git commands.
• Improved error handling and performance in worktree dashboard/status flows.