v2.15.0

Known issues:

• The canary fails three OpenCode scenarios on opencode v2.1.4 (#651, #652, #653): a queue worker's result, a read session, an agent's spawn. v2.1.4 is newer than the tested range (max 2.1.2), so aegis asks before a session starts on it.
• browser_entry_p50_ms rose from 1.27 to 1.63 ms in CI's bench with the one-row phone header (#636).
• Open from the 2.14.0 smoke test: #633 (the secret card's title wraps), #634 (dictation can append "Thank you."), #635 (crontab -l fails under the multi-user unit).

What's Changed

• fix(client): on a phone the header is one row (#631) by @apiad in #636
• New tab: hints from the help pages, /feedback, and a doctor row with /doctor by @apiad in #582
• fix(client): typing / in the new tab opens the command list (#632) by @apiad in #639
• fix(recap): one quiet line, and an ask only while the session needs its person by @apiad in #640
• fix(commands): pass the caller to the menu listing by @apiad in #643
• feat: read agent replies aloud, built-in voice by default and Phonon opt-in (#637) by @apiad in #638
• docs(feedback): show the issue draft as a rendered page by @apiad in #648
• fix(handoff): the new session takes the old one's place in its group by @apiad in #645

Full Changelog: v2.14.0...v2.15.0