fix: do not send empty message

bot/src/modules/ai.ts

@@ -41,10 +41,10 @@ export const ai = async(
     const parsedPrompt = prompt.replace("{{username}}", username);
 
     const result = await anthropic.beta.messages.create({
-      betas:       [ "web-search-2025-03-05" ],
-      // eslint-disable-next-line @typescript-eslint/naming-convention -- API requirement
-      max_tokens:  20_000,
+      betas:      [ "web-search-2025-03-05" ],
       // eslint-disable-next-line @typescript-eslint/naming-convention -- API requirement
+      max_tokens: 20_000,
+
       messages: messages.map((message) => {
         return {
           content: message.content,
@@ -62,7 +62,7 @@ export const ai = async(
           allowed_domains: [ "nhcarrigan.com" ],
           name:            "web_search",
           type:            "web_search_20250305",
-        }
+        },
       ],
     });
     await calculateCost(result.usage, username);
@@ -74,7 +74,9 @@ export const ai = async(
         return setTimeout(resolve, 3000);
       });
       if (payload.type === "text") {
-        await channel.send({ content: payload.text });
+        await channel.send({ content: payload.text === ""
+          ? "No response."
+          : payload.text });
       }
       if (payload.type === "tool_use") {
         await channel.send({ content: `Searching web via: ${String(payload.name)}` });