Summarize current v2.4 state and forward-looking backlog in docs/ as a
parallel entry point to the active .planning/ GSD workspace. Lets
superpowers skills (brainstorming → writing-plans → executing-plans)
work from a clean starting point without retiring the existing workflow.
Also ignore .idea/ so JetBrains project files stay local.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>