Master architecture and phase decomposition for the agent system built around the Firefly III stack: connector-based ingestion (SimpleFIN primary), hybrid worker + Claude runtime, prep-and-approve bill pay, three-channel notifications, and a six-phase build order. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01Uv7wnzF6Xv6fmaRjFTiMMq