Initial commit: Superpowers plugin v1.0.0

Core skills library as Claude Code plugin:
- Testing skills: TDD, async testing, anti-patterns
- Debugging skills: Systematic debugging, root cause tracing
- Collaboration skills: Brainstorming, planning, code review
- Meta skills: Creating and testing skills

Features:
- SessionStart hook for context injection
- Skills-search tool for discovery
- Commands: /brainstorm, /write-plan, /execute-plan
- Data directory at ~/.superpowers/

skills/collaboration/remembering-conversations/tool/.gitignore

@@ -0,0 +1,8 @@
+node_modules/
+dist/
+*.log
+.DS_Store
+
+# Local data (database and archives are at ~/.clank/, not in repo)
+*.sqlite*
+.cache/