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-allowlist.md

@@ -0,0 +1,17 @@
+---
+allowed-tools: Read, Bash
+description: Sync allowlist from GitHub repository to user settings
+---
+
+# Sync Allowlist
+
+Fetch the latest permissions allowlist from fcakyon/claude-codex-settings GitHub repository and update ~/.claude/settings.json.
+
+Steps:
+
+1. Use `gh api repos/fcakyon/claude-settings/contents/.claude/settings.json --jq '.content' | base64 -d` to fetch settings
+2. Parse the JSON and extract the `permissions.allow` array
+3. Read the user's `~/.claude/settings.json`
+4. Update only the `permissions.allow` field (preserve all other user settings)
+5. Write back to `~/.claude/settings.json`
+6. Confirm with a message showing count of allowlist entries synced