Cursor IDE configuration can now be imported

What

• claude import (and its /import slash command) now accepts cursor as a source, alongside the existing codex and gemini sources, across the command's argument list, usage text, argument hints, CLI validators, and config-review messaging.
• A new importer reads Cursor IDE configuration from ~/.cursor and .cursor/ (and .agents/skills) — including mcp.json, rules/*.mdc, skills/, commands/, hooks.json, and .cursorrules — and converts it into Claude Code MCP servers, skills, CLAUDE.md instructions, and slash commands. It includes safety checks (refusing symlinks, flagging values that look like credentials, refusing workspace-folder scoping, size caps, deduplication) and explicitly does not import Cursor hooks, .cursorignore, Cursor Memories, Custom Modes, or Team Rules.
• The CLAUDE.md import-fallback marker now recognizes cursor as a third source id alongside codex/gemini when merging or reconciling previously imported instructions.
• .cursor directories are now treated the same as .windsurfrules/.clinerules for worktree/context purposes (while .cursorrules was removed from that particular list), and a cursor boolean was added to import-related telemetry.

Why

This lets people who have been using Cursor bring their existing MCP servers, rules, skills, and commands into Claude Code with a single import command, instead of recreating them by hand.