feat(chatbot): add AI accuracy warning and disclaimer to initial greeting across Web, Telegram, and Discord

src/pages/AIAssistant/AIAssistant.tsx

@@ -9,7 +9,7 @@ const INITIAL_MESSAGES: ChatMessage[] = [
   {
     id: '1',
     role: 'assistant',
-    content: "👋 Hi there! I'm your **RIT Assistant**. I have comprehensive knowledge about Rajalakshmi Institute of Technology — from admissions to campus facilities, bus routes, and academic details.\n\nHow can I help you today?",
+    content: "👋 Hi there! I'm your **RIT Chatbot**.\n\n⚠️ *Please note: Answers generated by AI may occasionally be inaccurate or wrong. Please cross-reference critical academic, exam, or administrative details with official campus sources.*\n\nHow can I help you today?",
     timestamp: new Date().toISOString(),
   },
 ];