84fd61bf3f
Reply to a reader from the admin inbox instead of a mailto. Per Codex: keep v1
plain text (no rich editor — defers the user's bold/bullets ask as a fast-follow).
* DB: feedback_replies table (feedback_id, user_id, message, sent_to, sent_at),
created on the live DB.
* email_send.send_feedback_reply: plain-text "Re: Your Upbeat Bytes feedback"
with a quoted context block, no analytics/account details.
* API: POST /api/admin/feedback/{id}/reply — admin-gated, requires the feedback
exists (404) and has a contact_email (400), trims+caps the message; sends via
SMTP and only records the reply on success (502 on send failure so the UI keeps
the draft); marks the item read. Feedback list now includes each item's replies.
* Frontend: inline composer (Send/Cancel, sending state, error keeps draft) +
reply thread under the message; Reply only shows when there's an address,
else "No reply address".
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>