Defined MAC Clover boundary

Property	Value
description	Documented MAC Clover as the AI agent product rather than the Codex plugin or MCP runtime layer.
version	0.1.0
related	MAC Clover, Repo Boundaries

• Defined ownership for future Clover-specific AI agent implementation and operational notes.
• Clarified that mac-codex owns Codex plugin packaging and mac-mcp owns runtime/tool capabilities.