feat: Initialize GreenLens project with core dependencies and structure

Sets up the project using Vite, React, and TypeScript. Includes initial configuration for Tailwind CSS, Gemini API integration, and local storage management. Defines basic types for plant data and UI elements. The README is updated with local development instructions.

components/PlantSkeleton.tsx

@@ -0,0 +1,21 @@
+import React from 'react';
+
+export const PlantSkeleton: React.FC = () => {
+  return (
+    <div className="relative aspect-[4/5] rounded-2xl overflow-hidden bg-stone-200 dark:bg-stone-800 animate-pulse border border-stone-300 dark:border-stone-700/50">
+      
+      {/* Badge Placeholder */}
+      <div className="absolute top-3 left-3">
+        <div className="h-6 w-20 bg-stone-300 dark:bg-stone-700 rounded-full" />
+      </div>
+
+      {/* Content Placeholder */}
+      <div className="absolute bottom-4 left-3 right-3 space-y-2">
+        {/* Title */}
+        <div className="h-6 w-3/4 bg-stone-300 dark:bg-stone-700 rounded-md" />
+        {/* Subtitle */}
+        <div className="h-3 w-1/2 bg-stone-300 dark:bg-stone-700 rounded-md" />
+      </div>
+    </div>
+  );
+};