Dashboard ACCOUNTS section now shows only totals (users, active/total subscriptions,
notifications, push subs) — the per-user and per-subscription lists are gone, and the
dashboard no longer queries that PII at all.
Backend: add a per-request access log (logs/access/access-<date>.jsonl) recording the
client IP (real IP via the left-most X-Forwarded-For hop when proxied behind Caddy,
else the peer address), method, path, status, and category. Static assets and the
dashboard's own metrics polling are skipped. Best-effort, never raises into the request
path — retained for later traffic/IP analysis.
