debug(pressure-chart): add detailed logging for element discovery and button clicks

SUMMARY:
Added comprehensive logging to diagnose pressure monitor demo issue.
Will show if elements are found after innerHTML set and if event listeners
are attached successfully.

CHANGES:
- Log all element discovery (gauge, buttons, metrics)
- Log event listener attachment success/failure
- Log when simulate() and reset() methods are called
- Bump version to v20251019173500

DEBUGGING:
User reports demo not working despite initialization succeeding.
These logs will reveal:
- If DOM elements are queryable after innerHTML
- If event listeners are successfully attached
- If button clicks are triggering methods

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

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

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?v=20251019173000"></script>
-  <script src="/js/components/activity-timeline.js?v=20251019173000"></script>
+  <script src="/js/components/pressure-chart.js?v=20251019173500"></script>
+  <script src="/js/components/activity-timeline.js?v=20251019173500"></script>
 
   <!-- Footer Component -->
   <script src="/js/components/footer.js"></script>

public/js/components/pressure-chart.js

@@ -101,11 +101,26 @@ class PressureChart {
       simulateBtn: document.getElementById('pressure-simulate-btn'),
       resetBtn: document.getElementById('pressure-reset-btn')
     };
+
+    // Verify elements were found
+    console.log('[PressureChart] Elements found:', {
+      gaugeFill: !!this.elements.gaugeFill,
+      gaugeValue: !!this.elements.gaugeValue,
+      status: !!this.elements.status,
+      simulateBtn: !!this.elements.simulateBtn,
+      resetBtn: !!this.elements.resetBtn
+    });
   }
 
   attachEventListeners() {
+    if (!this.elements.simulateBtn || !this.elements.resetBtn) {
+      console.error('[PressureChart] Cannot attach event listeners - buttons not found');
+      return;
+    }
+    console.log('[PressureChart] Attaching event listeners to buttons');
     this.elements.simulateBtn.addEventListener('click', () => this.simulate());
     this.elements.resetBtn.addEventListener('click', () => this.reset());
+    console.log('[PressureChart] Event listeners attached successfully');
   }
 
   setLevel(level) {
@@ -190,12 +205,14 @@ class PressureChart {
   }
 
   simulate() {
+    console.log('[PressureChart] Simulate button clicked - starting pressure simulation');
     // Simulate pressure increasing from current to 85%
     const targetLevels = [30, 50, 70, 85];
     let index = 0;
 
     const step = () => {
       if (index >= targetLevels.length) return;
+      console.log('[PressureChart] Setting pressure level to', targetLevels[index]);
       this.setLevel(targetLevels[index]);
       index++;
       setTimeout(step, 1500);
@@ -205,6 +222,7 @@ class PressureChart {
   }
 
   reset() {
+    console.log('[PressureChart] Reset button clicked');
     this.setLevel(0);
   }
 }