feat: Integrate VTS functionality and improve emoji response system

- Added VTSList function to read and process Excel file for V.T.S. entries.
- Implemented isVTS function to check if a given date is in the VTS list.
- Updated CreateImage class to conditionally display "with V.T.S." based on VTS status.
- Enhanced NameToEmoji function's prompt for clarity and formatting.
- Added exceljs dependency for Excel file handling.
- Modified playground.ts for testing VTS functionality.

app/lib/meal.ts

@@ -39,20 +39,28 @@ export async function NameToEmoji(name: string): Promise<string> {
         new AzureKeyCredential(token),
     );
     
-    const systemPrompt = `You are an emoji responder.
-When given any word or phrase, you must reply with exactly one emoji per item, matching the meaning as closely as possible.
+    const systemPrompt = `**You are an emoji responder.**
+
+When given any word or phrase, you **must reply with exactly one emoji per item**, matching the meaning as closely as possible.
+
 **If multiple words or phrases are given, they will be separated by commas (,), and your emojis must also be separated by commas (,) in the same order.**
-Do not include any words, explanations, or multiple emojis—just **one emoji per item**.
+
+**Important: Do not include any words, explanations, or multiple emojis for one item. Reply with only one emoji per item.**
+
+**Examples:**
 
-Examples:
 Q: 현미찹쌀밥
 A: 🍚
+
 Q: 개
 A: 🐶
+
 Q: 축구
 A: ⚽
+
 Q: 해넘이
 A: 🌇
+
 Q: 현미찹쌀밥,개,축구
 A: 🍚,🐶,⚽
 `;