feat: add T3 Chat option to CopyPageDropdown (#613)

Add T3 Chat as an AI assistant option in the CopyPageDropdown menu,
allowing users to open the current page in T3 Chat for Q&A.

Co-authored-by: Tanner Linsley <tannerlinsley@gmail.com>

Author: jenewland1999

src/components/CopyPageDropdown.tsx

@@ -56,6 +56,26 @@ function CursorIcon({ className }: { className?: string }) {
   )
 }
 
+// T3 Chat icon
+function T3ChatIcon({ className }: { className?: string }) {
+  return (
+    <svg viewBox="0 0 258 199" fill="currentColor" className={className}>
+      <path
+        fillRule="evenodd"
+        clipRule="evenodd"
+        d="M165.735 25.0701L188.947 0.972412H0.465994V25.0701H165.735Z"
+      />
+      <path d="M163.981 96.3239L254.022 3.68314L221.206 3.68295L145.617 80.7609L163.981 96.3239Z" />
+      <path d="M233.658 131.418C233.658 155.075 214.48 174.254 190.823 174.254C171.715 174.254 155.513 161.738 150 144.439L146.625 133.848L127.329 153.143L129.092 157.336C139.215 181.421 163.034 198.354 190.823 198.354C227.791 198.354 257.759 168.386 257.759 131.418C257.759 106.937 244.399 85.7396 224.956 74.0905L220.395 71.3582L202.727 89.2528L210.788 93.5083C224.403 100.696 233.658 114.981 233.658 131.418Z" />
+      <path
+        fillRule="evenodd"
+        clipRule="evenodd"
+        d="M88.2625 192.669L88.2626 45.6459H64.1648L64.1648 192.669H88.2625Z"
+      />
+    </svg>
+  )
+}
+
 // Cache for fetched markdown content
 const markdownCache = new Map<string, string>()
 
@@ -173,6 +193,14 @@ export function CopyPageDropdown({
     )
   }
 
+  const handleOpenInT3Chat = () => {
+    const pageUrl = window.location.href
+    const prompt = encodeURIComponent(
+      `Read from this URL: ${pageUrl} and explain it to me`,
+    )
+    window.open(`https://t3.chat/new?q=${prompt}`, '_blank')
+  }
+
   const menuItems = [
     {
       icon: MarkdownIcon,
@@ -192,6 +220,12 @@ export function CopyPageDropdown({
       description: 'Ask questions about this page',
       onSelect: handleOpenInChatGPT,
     },
+    {
+      icon: T3ChatIcon,
+      label: 'Open in T3 Chat',
+      description: 'Ask questions about this page',
+      onSelect: handleOpenInT3Chat,
+    },
     {
       icon: CursorIcon,
       label: 'Open in Cursor',