feat: Add color role item effect with role swapping and implement item consumption toggle.

src/lib/config.ts

@@ -48,6 +48,7 @@ export interface GameConfigType {
     };
     studentRole: string;
     visitorRole: string;
+    colorRoles: string[];
     welcomeChannelId?: string;
     welcomeMessage?: string;
 }
@@ -111,6 +112,7 @@ const configSchema = z.object({
     }),
     studentRole: z.string(),
     visitorRole: z.string(),
+    colorRoles: z.array(z.string()).default([]),
     welcomeChannelId: z.string().optional(),
     welcomeMessage: z.string().optional()
 });