Chat: A Codex hook-blocked message can leave the conversation Working #27658

What happens

When a Codex prompt-checking script (a hook) refuses a submitted prompt, Codex can finish the turn without echoing the message. Orca can leave the conversation showing Working and prevent the next message from proceeding.

Expected

Read the hook’s refusal, settle the unanswered message when that turn completes, and let the user send another message.

Notes

An earlier attempt is in #25049, closed because it was too far behind main; its description has the diagnosis. On origin/main, src/main/native-chat/agent-session-wire/provider-frame-disposition.ts:39 suppresses hook completion, and src/main/codex/codex-structured-turn-end-settlement.ts:125 returns no rejection for a normally completed turn.