feat: Add character names to scenarios and UI

Introduces `characterName` to the `Scenario` type, enabling AI personas to be explicitly named. This change also updates the `ScenarioCard` component to display the character name and adds foundational support for potential future scenario deletion functionality. The README has been updated with a new AI Studio link.

components/VoiceSession/AnalyzingState.tsx

@@ -0,0 +1,16 @@
+
+import React from 'react';
+import { BrainCircuit } from 'lucide-react';
+
+const AnalyzingState: React.FC = () => (
+  <div className="flex flex-col items-center justify-center h-full text-slate-800">
+    <div className="bg-white p-12 rounded-full shadow-lg border border-teal-100 mb-8 relative">
+       <BrainCircuit size={64} className="text-teal-600 animate-pulse" />
+       <div className="absolute inset-0 border-4 border-teal-500 border-t-transparent rounded-full animate-spin"></div>
+    </div>
+    <h2 className="text-2xl font-bold mb-2">Generating Report</h2>
+    <p className="text-slate-500 text-center max-w-sm">Synthesizing vocal patterns and cognitive restructuring evidence...</p>
+  </div>
+);
+
+export default React.memo(AnalyzingState);