Replace flat 3-step LLM workflow with per-sub-question architecture diagram. Document per-sub-question retrieval, filtering (single LLM call with sub-q grouping), and response generation with ## headers. Update CODE MAP to reflect completed implementation status. Add SSE event sequence with generating_subquestion events, history XML format with <sub_q> wrappers, and sources as list-of-lists JSON.
Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
- Log to console only (must use backend/app/log/)
- Commit log files to git (must be .gitignored)
Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>