Release v0.3.0

What's Changed

✨ Features

• feat: add CLI-first, VS Code-friendly coverage for current Copilot CLI customization specs
• feat: document hooks, plugins, advanced MCP, permissions, built-in agents, and OpenTelemetry
• feat: expand setup audit checks for advanced Copilot CLI features and configuration gaps

📚 Documentation

• docs: reframe blueprint positioning from CLI-only to CLI-first and VS Code-friendly
• docs: update agent, skill, instruction, hook, MCP, and plugin guidance across source and package docs
• docs: refresh skill templates with current frontmatter and tool-safety guidance

🔧 Maintenance

• chore: update installer and validation workflow for hooks and MCP configuration files