- Add pino with pino-pretty for structured logging
- Create root logger in index.ts with child loggers per module
- Support log level via PASEO_LOG env var and config.json
- Support log format (pretty/json) via PASEO_LOG_FORMAT and config.json
- Replace all console.* in runtime code with appropriate log levels
- Scripts use process.stdout/stderr for output
- Error logging uses correct pattern: logger.error({ err }, msg)
- Add AgentSlashCommand and AgentCommandResult types
- Add listCommands() and executeCommand() to AgentSession interface
- Implement command support in ClaudeAgentSession
- Fix user message handling for local command output (string content)
- Add POC scripts for command investigation
- Add TDD tests for command functionality