v1.16.0 — Quota table view + order id

Built from main @ 5e2e1e5. Adds: quota page table view + clock-hour limits, credential order id display, proxy IP / failure reasons in auth-files table, inline rate-limit editing, per-credential quota status, credential export.

v1.15.0 — Auth Files table view

Auth Files management page redesigned as a scannable table with an expandable per-account detail panel surfacing status, errors, quota cooldown, usage window, RPM/TPM/RPH/concurrency rate limits, and recent warnings. Built from main @ 103c985.