feat: add audio player for Introduction chapter in The Last Economy

Author: thinkingjimmy

src/content/the-last-economy/introduction.mdx

@@ -1,5 +1,12 @@
 # Introduction: The Thousand-Day Window
 
+<audio controls className="w-full mt-6">
+  <source
+    src="https://storage.googleapis.com/webstatics.ii.inc/Introduction-TLE.mp3"
+    type="audio/mp3"
+  />
+</audio>
+
 Your economic life expectancy is shrinking. Not your career. Not your current job. Your entire economic relevance as a human being. We are living through a historical epoch of unprecedented change, a finite window of time during which the fundamental rules of our civilization are being rewritten. This is not speculation. This is a phase transition.
 
 When I write these words, I do so with the peculiar burden of someone who has seen both worlds. For years, I was a macro hedge fund manager. My job was to find the cracks in the global financial system and bet on them before they shattered. I learned to see the world not as economists described it, but as a fragile, interconnected network governed by fear, greed, and the brutal physics of capital flows.