fix: add missing allowed tools for Claude workflow (#3090)

Add mcp__mcp-docs and WebFetch to allowedTools so Claude can use
the MCP docs server and fetch schema content from GitHub URLs.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-authored-by: Claude <noreply@anthropic.com>
Co-authored-by: Cliff Hall <cliff@futurescale.com>

Author: 3 people

.github/workflows/claude.yml

@@ -45,5 +45,5 @@ jobs:
 
           claude_args: |
             --mcp-config .mcp.json
-            --allowedTools Bash
+            --allowedTools "Bash,mcp__mcp-docs,WebFetch"
             --append-system-prompt "If posting a comment to GitHub, give a concise summary of the comment at the top and put all the details in a <details> block. When working on MCP-related code or reviewing MCP-related changes, use the mcp-docs MCP server to look up the latest protocol documentation. For schema details, reference https://github.com/modelcontextprotocol/modelcontextprotocol/tree/main/schema which contains versioned schemas in JSON (schema.json) and TypeScript (schema.ts) formats."