Dismiss an Inbox row without opening Command details #1407

This was generated by AI during triage.

Since the Inbox became a three-pane mailbox (#1368), a Dismissal with JavaScript on is only reachable from Command details. Opening details for each row is slow (#1363), so clearing Needs you means one details pane per row. The Day shift wants to dismiss a row straight from its one-line row, with the mouse or the keyboard.

Agent Brief

Category: enhancement
Summary: Dismiss an Inbox row from its one-line row, with a d shortcut and an Undo notice, without opening Command details

Current behavior:
src/console/row.html still renders a Dismiss form (form[data-dismiss] in .row-actions) for every row with can_dismiss, but .one-line .command > :not(.row-head) { display: none; } in src/console/assets/console.css hides it whenever scripting is enabled. The only visible Dismiss is in Command details (src/console/peek.html), which also offers Undo for a dismissed row. POST /dismiss and POST /dismiss/undo (src/console/dismiss.rs) and the in-flight dismissals state in src/console/assets/console.js already handle pending feedback, errors and live replacement of rows.

Desired behavior:

• Every one-line row that can be dismissed (a row in Needs you or Ready for review) shows a Dismiss button on its line, always visible, beside Copy. Rows that can't be dismissed show none. Clicking it doesn't open or toggle Command details.
• d dismisses the selected row (selected with j/k or a click) when it can be dismissed, and does nothing otherwise. Selection then moves to the next row, so j/d can sweep a group. d follows the existing keydown guards (inputs, open dialogs, modifiers). The keyboard help dialog lists it.
• After an inline Dismiss (button or d) succeeds, a short-lived notice appears, "Dismissed · Undo". Undo posts to /dismiss/undo for that Command and the row comes back. It reuses the existing pending/disabled/error feedback, and a failed Undo shows its error and can be retried. The notice is announced to screen readers (role="status").
• Dismissing uses the same request, CSRF token and Activity log entry as Command details. If details is open on the dismissed row, it updates the way it does now.
• The narrow (≤760px) layout keeps the button reachable without horizontal scrolling.
• Without JavaScript, rows keep showing their full Dismiss form as they do now.

Key interfaces:

• src/console/row.html: the row's line (.row-head) and the can_dismiss flag.
• src/console/assets/console.css: the .one-line grid.
• src/console/assets/console.js: the form[data-dismiss] submit handler, dismissals, showDismissal, select/items, the document keydown handler, the keyboard help dialog.
• src/console/dismiss.rs: the existing endpoints. No server change should be needed.

Acceptance criteria:

• A console/tests/inbox.test.cjs test clicks the inline Dismiss on a Needs you row and the row leaves the group without Command details opening.
• A test selects a row with j, presses d, and sees the row dismissed and the next row selected. d on a row that can't be dismissed, or while typing in an input, does nothing.
• A test clicks Undo in the notice and the row comes back. A failed dismiss or undo shows its error.
• The keyboard help lists d.
• Site browser tests and console/README.md say Dismiss is on the row and under d. site/how-it-works/ and site/architecture/ no longer say Dismiss is only in Command details or on rows only without JavaScript.

Out of scope:

• Dismissing several rows at once, or "dismiss all".
• Making Command details faster (Command details take ~35s because every read re-parses historical Session traces #1363).
• Changes to what a Dismissal means or when a dismissed row comes back.