feat: modernize analysis page layout and coin selection

- Remove hero section from analysis page for cleaner interface
- Relocate timeframe selection to Quick Analysis section for better UX flow
- Remove outdated Quick Actions timeframe buttons section
- Reduce coin selection from 8 to 4 most popular coins (BTC, ETH, SOL, SUI)
- Replace Unicode coin symbols with professional CoinGecko icon images
- Convert coin layout from 2x2 grid to full-width horizontal row
- Improve layout selection with descriptive AI/DIY indicators
- Add sessionId support for enhanced progress tracking
- Clean up unused quickTimeframeTest and testAllTimeframes functions

app/analysis/page.js

@@ -4,17 +4,7 @@ import AIAnalysisPanel from '../../components/AIAnalysisPanel'
 
 export default function AnalysisPage() {
   return (
-    <div className="space-y-8">
-      <div className="text-center mb-8">
-        <h1 className="text-3xl font-bold text-white mb-4">
-          🤖 AI-Powered Market Analysis
-        </h1>
-        <p className="text-gray-400 max-w-2xl mx-auto">
-          Get professional trading insights with multi-timeframe analysis, precise entry/exit levels, 
-          and institutional-quality recommendations powered by OpenAI.
-        </p>
-      </div>
-      
+    <div className="space-y-8">      
       <AIAnalysisPanel />
     </div>
   )