Docs consolidation + audit-log timezone fix + PTO-Exhausted sliding scale

Documentation:
- Consolidate 6 doc surfaces to 3. Merge Unraid guide into README and
  fold durable mobile rules into AGENTS.md; remove README_UNRAID_INSTALL.md,
  MOBILE_RESPONSIVE.md, and the misplaced "CPAS Violation Tracker.md" vault note.
- Fix drift across README/AGENTS/in-app guide: clean-cycle roll-off model
  (not per-violation 90-day window), auth documented as shipped, dropped
  active_cpas_scores view, correct table count (8 tables/0 views), auth
  endpoints + ADMIN_PASSWORD in run commands, roadmap updated.

Fixes:
- Audit log / amendment timestamps: SQLite CURRENT_TIMESTAMP is UTC with no
  zone marker; new Date() parsed the space-separated form as local time,
  shifting entries +5h in Chicago/CDT. Pin the bare form to UTC before
  formatting in AuditLog.jsx and AmendViolationModal.jsx.
- Absence - PTO Exhausted: fixed 5 pts -> sliding scale 1-5.

Rebuild client bundle to include the above.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

client/src/components/AmendViolationModal.jsx

@@ -73,9 +73,13 @@ const s = {
   },
 };
 
+// SQLite CURRENT_TIMESTAMP is UTC as "YYYY-MM-DD HH:MM:SS" with no zone marker;
+// JS Date() would parse that space-separated form as local time and shift it by
+// the viewer's UTC offset. Pin the bare SQLite form to UTC before formatting.
 function fmtDt(iso) {
   if (!iso) return '—';
-  return new Date(iso).toLocaleString('en-US', { timeZone: 'America/Chicago', dateStyle: 'medium', timeStyle: 'short' });
+  const utc = /^\d{4}-\d\d-\d\d \d\d:\d\d:\d\d$/.test(iso) ? iso.replace(' ', 'T') + 'Z' : iso;
+  return new Date(utc).toLocaleString('en-US', { timeZone: 'America/Chicago', dateStyle: 'medium', timeStyle: 'short' });
 }
 
 export default function AmendViolationModal({ violation, onClose, onSaved }) {