fix(cache): add cache-busting versions to pressure chart and activity timeline

SUMMARY:
Added version query strings to demo script tags to force browser cache
refresh for the initialization timing fixes.

CHANGES:
- Added ?v=20251019172000 to pressure-chart.js
- Added ?v=20251019172000 to activity-timeline.js

IMPACT:
Users will now load the fixed JavaScript that properly initializes
when DOM is already loaded. Prevents stale cache issues.

🤖 Generated with Claude Code (https://claude.com/claude-code)

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

.claude/metrics/hooks-metrics.json

@@ -4731,6 +4731,13 @@
       "file": "/home/theflow/projects/tractatus/public/js/components/activity-timeline.js",
       "result": "passed",
       "reason": null
+    },
+    {
+      "hook": "validate-file-edit",
+      "timestamp": "2025-10-19T09:14:11.391Z",
+      "file": "/home/theflow/projects/tractatus/public/architecture.html",
+      "result": "passed",
+      "reason": null
     }
   ],
   "blocks": [
@@ -4994,9 +5001,9 @@
     }
   ],
   "session_stats": {
-    "total_edit_hooks": 486,
+    "total_edit_hooks": 487,
     "total_edit_blocks": 36,
-    "last_updated": "2025-10-19T09:09:35.997Z",
+    "last_updated": "2025-10-19T09:14:11.391Z",
     "total_write_hooks": 190,
     "total_write_blocks": 7
   }

public/architecture.html

@@ -549,8 +549,8 @@
   <script src="/js/components/interactive-diagram.js?v=20251019170000"></script>
 
   <!-- Data Visualizations (Phase 3) -->
-  <script src="/js/components/pressure-chart.js"></script>
-  <script src="/js/components/activity-timeline.js"></script>
+  <script src="/js/components/pressure-chart.js?v=20251019172000"></script>
+  <script src="/js/components/activity-timeline.js?v=20251019172000"></script>
 
   <!-- Footer Component -->
   <script src="/js/components/footer.js"></script>