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/supabase-tools-setup.md

@@ -0,0 +1,96 @@
+---
+description: Configure Supabase MCP with OAuth authentication
+---
+
+# Supabase Tools Setup
+
+**Source:** [supabase-community/supabase-mcp](https://github.com/supabase-community/supabase-mcp)
+
+Configure the official Supabase MCP server with OAuth.
+
+## Step 1: Check Current Status
+
+Read the MCP configuration from `${CLAUDE_PLUGIN_ROOT}/.mcp.json`.
+
+Check if Supabase is configured:
+
+- If `supabase.url` contains `REPLACE_WITH_PROJECT_REF`, it needs configuration
+- If it contains an actual project reference, already configured
+
+Report status:
+
+- "Supabase MCP is not configured - needs project reference"
+- OR "Supabase MCP is configured with project: PROJECT_REF"
+
+## Step 2: Show Setup Guide
+
+Tell the user:
+
+```
+To configure Supabase MCP, you need your Supabase project reference.
+
+Quick steps:
+1. Go to supabase.com/dashboard
+2. Select your project
+3. Go to Project Settings > General
+4. Copy the "Reference ID" (looks like: abcdefghijklmnop)
+
+The MCP uses OAuth - you'll authenticate via browser when first connecting.
+```
+
+## Step 3: Ask for Project Reference
+
+Use AskUserQuestion:
+
+- question: "Do you have your Supabase project reference ready?"
+- header: "Project Ref"
+- options:
+  - label: "Yes, I have it"
+    description: "I have my Supabase project reference ready"
+  - label: "No, skip for now"
+    description: "I'll configure it later"
+
+If user selects "No, skip for now":
+
+- Tell them they can run `/supabase-tools:setup` again when ready
+- Remind them they can disable Supabase MCP via `/mcp` if not needed
+- Exit
+
+If user selects "Yes" or provides reference via "Other":
+
+- If they provided reference in "Other" response, use that
+- Otherwise, ask them to paste the project reference
+
+## Step 4: Validate Reference
+
+Validate the provided reference:
+
+- Must be alphanumeric
+- Should be 16-24 characters
+
+If invalid:
+
+- Show error: "Invalid project reference format"
+- Ask if they want to try again or skip
+
+## Step 5: Update Configuration
+
+1. Read current `${CLAUDE_PLUGIN_ROOT}/.mcp.json`
+2. Create backup at `${CLAUDE_PLUGIN_ROOT}/.mcp.json.backup`
+3. Replace `REPLACE_WITH_PROJECT_REF` with the actual project reference in the URL
+4. Write updated configuration back to `${CLAUDE_PLUGIN_ROOT}/.mcp.json`
+
+## Step 6: Confirm Success
+
+Tell the user:
+
+```
+Supabase MCP configured successfully!
+
+IMPORTANT: Restart Claude Code for changes to take effect.
+- Exit Claude Code
+- Run `claude` again
+
+On first use, you'll be prompted to authenticate via browser (OAuth).
+To verify after restart, run /mcp and check that 'supabase' server is connected.
+```