feat: Update web search agent to return top 12 results and enhance message box interactivity

src/app/api/chat/route.ts

@@ -425,6 +425,7 @@ export const POST = async (req: Request) => {
           }),
         ),
       );
+      writer.close();
       cleanupCancelToken(message.messageId);
     });
 

src/components/MessageBox.tsx

@@ -93,7 +93,7 @@ const MessageBox = ({
           ) : (
             <>
               <div className="flex items-center">
-                <h2 className="text-black dark:text-white font-medium text-3xl">
+                <h2 className="text-black dark:text-white font-medium text-3xl" onClick={startEditMessage}>
                   {message.content}
                 </h2>
                 <button

src/components/MessageInputActions/Optimization.tsx

@@ -15,13 +15,13 @@ const OptimizationModes = [
       'Prioritize speed and get the quickest possible answer. Minimum effort retrieving web content.',
     icon: <Zap size={20} className="text-[#FF9800]" />,
   },
-  {
-    key: 'balanced',
-    title: 'Balanced',
-    description:
-      'Find the right balance between speed and accuracy. Medium effort retrieving web content.',
-    icon: <Sliders size={20} className="text-[#4CAF50]" />,
-  },
+  // {
+  //   key: 'balanced',
+  //   title: 'Balanced',
+  //   description:
+  //     'Find the right balance between speed and accuracy. Medium effort retrieving web content.',
+  //   icon: <Sliders size={20} className="text-[#4CAF50]" />,
+  // },
   // {
   //   key: 'quality',
   //   title: 'Quality',

src/lib/agents/webSearchAgent.ts

@@ -175,10 +175,10 @@ export class WebSearchAgent {
         }),
       );
 
-      // Sort by relevance score and take top 8 results
+      // Sort by relevance score and take top 12 results
       const previewContents: PreviewContent[] = resultsWithSimilarity
         .sort((a, b) => b.similarity - a.similarity)
-        .slice(0, 8)
+        .slice(0, 12)
         .map(({ result }) => ({
           title: result.title || 'Untitled',
           snippet: result.content || '',
@@ -301,7 +301,7 @@ export class WebSearchAgent {
 
         // Summarize the top 2 search results
         for (const result of resultsWithSimilarity
-          .slice(0, 8)
+          .slice(0, 12)
           .map((r) => r.result)) {
           if (this.signal.aborted) {
             console.warn('Search operation aborted by signal');