Add Playwright configuration and initial tests for landing page

- Created playwright.config.ts for test configuration
- Added .last-run.json to store test run status
- Implemented landing.test.ts with tests for navbar visibility and navigation
- Removed unused server proxy configuration from vite.config.ts

app/routes/stocks.tsx

@@ -1,9 +1,23 @@
 import StockViewer from "../components/StockViewer";
+import Navbar from "../components/Navbar";
 
 export default function Stocks() {
   return (
-    <main className="flex items-start justify-center pt-8 pb-4">
-      <StockViewer />
-    </main>
+    <div className="min-h-screen bg-gradient-to-br from-gray-50 to-blue-50">
+      <Navbar />
+      <div className="py-20">
+        <div className="mx-auto max-w-7xl px-6 sm:px-8 lg:px-8">
+          <div className="text-center mb-12">
+            <h1 className="text-4xl font-bold text-gray-900 mb-4">
+              Stock Indicators
+            </h1>
+            <p className="text-xl text-gray-600 max-w-2xl mx-auto">
+              Analyze technical indicators for any stock symbol.
+            </p>
+          </div>
+          <StockViewer />
+        </div>
+      </div>
+    </div>
   );
 }