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/REQUESTS.md

@@ -0,0 +1,36 @@
+# Skill Requests
+
+Use this page to document skills you wish existed. Add requests here when you encounter situations where a skill would have helped.
+
+## Format
+
+```markdown
+## [Short Descriptive Name]
+**What I need:** One-line description
+**When I'd use it:** Specific situations/symptoms
+**Why I need this:** What makes this non-obvious or worth capturing
+**Added:** YYYY-MM-DD
+```
+
+---
+
+## Current Requests
+
+(None yet - add requests below as you discover needs)
+
+---
+
+## Completed Requests
+
+Skills that have been created from this list will move here with links.
+
+---
+
+## Guidelines
+
+- **Be specific** - "Flaky test debugging" not "testing help"
+- **Include symptoms** - Error messages, behavior patterns
+- **Explain non-obvious** - Why can't you just figure this out?
+- **One skill per request** - Keep them focused
+
+your human partner reviews this periodically and we create skills together.