fix(web): a cancelled question's typed answer goes to the thread draft, not a queued edit

Recovery wrote into composerDraftTarget, which is a temporary queued-message
edit draft while one is open; cancelling that edit then cleared the recovered
answer. Anchor recovery to the owning thread's own draft.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
476597e33bJulius Marminge committed on 10/22/2026, 10:47:28 AMparent5937570
2 files changedLine totals unavailable