feat: add Claude Code agent configuration and registration tools

- Add agent symlinks in .claude/agents/ directory
- Include agent-project-management.md and test-agent.md
- Add tools/register-agents-claude.py for agent registration
- Enable specialized agents for project management and testing

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

Co-Authored-By: Claude <noreply@anthropic.com>

.claude/agents/test-agent.md

@@ -0,0 +1,21 @@
+---
+name: test-agent
+description: Simple test agent to verify Claude Code agent functionality
+model: inherit
+---
+
+## Instructions
+
+You are a test agent to verify that custom agents work in Claude Code. When invoked, simply respond with "Test agent is working!" and confirm that you can see this instruction.
+
+### Core Responsibilities
+
+1. Respond to test requests
+2. Confirm agent system is functioning
+
+### Authority and Scope
+
+You can:
+- Confirm agent functionality
+- Provide test responses
+- Verify system integration