[TheGreatAxios]

Closes CL-12078.

A decline of one of the coordinator's asks now reaches it as the person's answer. Hub middleware in front of Interchange's reject route writes the decline's message from apps/hub/src/config/decline.ts: "The person has chosen to decline this tool call." followed by their feedback, or, without words, a request to ask them what they would like to do next. Only approvals raised by a project coordinator's run get the note; the coder's package asks pass through unchanged.

On the page, a message sent while a card is open, or an approach chosen while an unrelated card is open, goes as the decline's feedback instead of a bare decline followed by a separate mail. When the ask was already decided elsewhere (409 already_resolved) the words go as mail instead. Not yet puts the cursor in the composer once the decline has saved (the composer is disabled while it saves). The conversation reads the person's words back out of the note, so their message shows as they typed it, and a resumed coordinator reads "Rejected a request: ". The composer placeholder now reads "Say what you'd like changed, or ask a question…".

Constraints

• Wording stays in configuration
• The decline goes through Interchange's approval rejection, which already carries an optional message

Verification

• bun run lint, format:check, typecheck, test, pins:verify, vendor:verify pass.
• bun run test:e2e passes (9/9) against a throwaway Postgres. The recorded pipeline's decline of the approaches now asserts the coordinator's tool result contains "Their feedback is: I think Approach B is the best", which only the hub's note produces.
• New unit tests: the middleware writes the note with and without words, leaves other runs' declines and malformed bodies alone; the conversation reads back only the person's words with and without a note; a message or approach choice sent while a card is open is the decline's feedback, not separate mail.
• Not checked in a running app: the composer focus after Not yet.

[linear-code]

CL-12078

CL-12150

CL-12152

CL-12151

[corbits-triage]

Triage: In progress

Triage is waiting for code review before it decides. This comment shows the verdict once it has.

[corbits-triage]

P2 · Any 409, not just already_resolved, makes the decline fall back to mail

saveDecision returns "settled" for every 409 without checking the response code, and declineWith then mails the words as if the ask were already decided. The PR says only already_resolved should do this. Other 409s mean the decline was never saved: project_busy, stale_revision, artifact_ask_coordinator_unavailable and project_archived. In those cases the card stays open, the parked coordinator never gets the person's answer, and their words go as ordinary mail. The person sees no error, and an archived project's mail send can fail with a misleading fault.

The person types a message while a coordinator card is open and the reject call returns 409 with code project_busy (or stale_revision).

Resolve this comment. Triage will not finish while it is open.

[corbits-triage]

P3 · Approach choice drops the specific decline error and returns the generic notSent

Before, a failed 'no' decision returned its own error to the approaches view. Now every failed decline becomes notSent, so the view no longer shows why it failed; only the toast does.

Pick an approach while an unrelated coordinator card is open, and the decline request fails (for example a network or server error).

Resolve this comment. Triage will not finish while it is open.