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/data/violations.js

@@ -19,7 +19,7 @@ export const violationData = {
     },
     pto_exhausted: {
         name: 'Absence - PTO Exhausted', category: 'Attendance & Punctuality',
-        minPoints: 5, maxPoints: 5, chapter: 'Chapter 4, Section 5',
+        minPoints: 1, maxPoints: 5, chapter: 'Chapter 4, Section 5',
         fields: ['description'],
         description: 'Any absence after PTO bank reaches zero'
     },