Problem

irelay config is a stub that only prints "Configuration manager".

File: Packages/Sources/CLI/Commands/ConfigCommand.swift

What's needed

• irelay config channels — list/add/remove channel configurations
• irelay config providers — list/add/remove LLM provider configurations
• irelay config agents — list/add/remove agent configurations
• Read/write from config file or database

Current state

The command is registered but has no implementation.