Add comprehensive skills, agents, commands collection

- Added 44 external skills from obra/superpowers, ui-ux-pro-max-skill, claude-codex-settings
- Added 8 autonomous agents (commit-creator, pr-creator, pr-reviewer, etc.)
- Added 23 slash commands for Git/GitHub, setup, and plugin development
- Added hooks for code formatting, notifications, and validation
- Added MCP configurations for Azure, GCloud, Supabase, MongoDB, etc.
- Added awesome-openclaw-skills registry (3,002 skills referenced)
- Updated comprehensive README with full documentation

Sources:
- github.com/obra/superpowers (14 skills)
- github.com/nextlevelbuilder/ui-ux-pro-max-skill (1 skill)
- github.com/fcakyon/claude-codex-settings (29 skills, 8 agents, 23 commands)
- github.com/VoltAgent/awesome-openclaw-skills (registry)
- skills.sh (reference)
- buildwithclaude.com (reference)

commands/claude-codex-settings/claude-tools-sync-claude-md.md

@@ -0,0 +1,10 @@
+---
+allowed-tools: Read, Bash
+description: Sync CLAUDE.md from GitHub repository
+---
+
+# Sync CLAUDE.md
+
+Fetch the latest CLAUDE.md from fcakyon/claude-codex-settings GitHub repository and update ~/.claude/CLAUDE.md.
+
+Use `gh api repos/fcakyon/claude-codex-settings/contents/CLAUDE.md --jq '.content' | base64 -d` to fetch the file content, then write to ~/.claude/CLAUDE.md. Confirm successful update with a message showing the file has been synced.