feat: Implement welcome messages for new enrollments using a new webhook utility and refactor the admin webhook command to utilize it.

src/lib/config.ts

@@ -47,6 +47,8 @@ export interface GameConfigType {
     };
     studentRole: string;
     visitorRole: string;
+    welcomeChannelId?: string;
+    welcomeMessage?: string;
 }
 
 // Initial default config state
@@ -106,7 +108,9 @@ const configSchema = z.object({
 
     }),
     studentRole: z.string(),
-    visitorRole: z.string()
+    visitorRole: z.string(),
+    welcomeChannelId: z.string().optional(),
+    welcomeMessage: z.string().optional()
 });
 
 export function reloadConfig() {
@@ -139,6 +143,8 @@ export function reloadConfig() {
     config.lootdrop = rawConfig.lootdrop;
     config.studentRole = rawConfig.studentRole;
     config.visitorRole = rawConfig.visitorRole;
+    config.welcomeChannelId = rawConfig.welcomeChannelId;
+    config.welcomeMessage = rawConfig.welcomeMessage;
 
     console.log("🔄 Config reloaded from disk.");
 }