fix(server): project Claude plans and todos

Translate TodoWrite and ExitPlanMode tool input into canonical todo-list and proposed-plan artifacts so every client can render Claude planning state.

Finding: R05

Model: GPT-5.6 Sol via Codex
cf8fe01322Julius Marminge committed on 9/18/2026, 12:49:53 AM· committed by Julius Marmingeparent687c83a
2 files changedLine totals unavailable