v3.24.0

Added

• /borrow slash command — borrow is now triggerable straight from the in-session chat input. Type /borrow <mode> <intent> (e.g. /borrow wordtaste polish this hero copy) and the agent parses it, prepares a bounded brief, dispatches the borrow, stays live, and folds the returned result back in. Backed by a session-scoped .claude/commands/borrow.md that Claude Code surfaces as a native slash command, gated by a new optional commandsDir convention on BackendModule (Claude Code only; Codex/Kimi skip it — no hardcoded backend check). Works in any Claude Code session, quick or project. Completes the borrow trigger surface from 3.23.0, which shipped the CLI + agent guidance but no user-facing entry point.