* feat(setup): add WorkBuddy client support
Register rea in the global ~/.workbuddy/mcp.json through a new workbuddy
entry in SUPPORTED_CLIENT_DEFINITIONS (json dialect, ~/.workbuddy marker,
~/.workbuddy/skills skill directory; WorkBuddy AI shares the file).
Document the client, extend the unreleased-client note, and cover
registration and uninstall with boundary tests.
* docs(setup): record verified WorkBuddy tool calls
Real-client verification completed: WorkBuddy loads the registration and
real REA tool calls execute through the registered server.
Xiangfang Chen