Reports were anonymous and one-way. Tie each report to the submitting device
(X-Device-Id), add an admin response back-channel, and let the app fetch replies for
its own device:
- migration 0023: bug_reports gains device_id, response, responded_at, response_seen.
- create_bug_report captures device_id.
- GET /bug-reports/mine (device-scoped) returns this device's reports + unseen count.
- POST /bug-reports/mine/seen clears the unseen flag.
- POST /bug-reports/{id}/reply sets the admin response (authored during triage).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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