Add rotating hero image gallery for desktop breakpoint

- Add 5 new hero images to assets/images/hero-gallery/
- Create hero-section.js with image rotation (6s interval)
- Only preload/animate at >= 1450px to save mobile bandwidth
- Fade transition with slight grow effect
- Add overflow:hidden to prevent scrollbar during transition
- Images use 30% right crop via transform system

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

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

test-results/.last-run.json

@@ -1,7 +1,4 @@
 {
   "status": "failed",
-  "failedTests": [
-    "ceec39c5ceb79c41f99d-1234f86ffc786a28d180",
-    "ceec39c5ceb79c41f99d-869898787716c68d21a2"
-  ]
+  "failedTests": []
 }