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
24e256eaeaJulius Marminge committed on 9/21/2026, 5:31:37 AMparent578e7d9
2 files changedLine totals unavailable