- The pool payout-address rule is no longer hover-only: an invalid payout
address now outlines the field in red and shows a short reason below it (a row
is reserved so it doesn't overlap the card beneath). The longer tooltip stays.
- The solo "Mining Addr" row gains a hover explainer and a "None yet" empty-state
(with a tooltip pointing to Receive → New mining address) instead of a blank.
- Replaced hardcoded English in the earnings/stats cards ("(%d txn)", uptime
"N/A"/"%lldm %llds"/"%lldh %lldm") with TR() keys.
Also carries the chat-export confirm strings used by the next commit.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>