upd: updated validateCharacterConfig to give better feedback

Author: JoeyKhd

packages/core/src/environment.ts

@@ -1,5 +1,6 @@
 import { z } from "zod";
 import { ModelProviderName, Clients } from "./types";
+import elizaLogger from "./logger";
 
 // TODO: TO COMPLETE
 export const envSchema = z.object({
@@ -137,11 +138,26 @@ export function validateCharacterConfig(json: unknown): CharacterConfig {
         return CharacterSchema.parse(json);
     } catch (error) {
         if (error instanceof z.ZodError) {
-            const errorMessages = error.errors
-                .map((err) => `${err.path.join(".")}: ${err.message}`)
-                .join("\n");
+            const groupedErrors = error.errors.reduce(
+                (acc, err) => {
+                    const path = err.path.join(".");
+                    if (!acc[path]) {
+                        acc[path] = [];
+                    }
+                    acc[path].push(err.message);
+                    return acc;
+                },
+                {} as Record<string, string[]>
+            );
+
+            Object.entries(groupedErrors).forEach(([field, messages]) => {
+                elizaLogger.error(
+                    `Validation errors in ${field}: ${messages.join(" - ")}`
+                );
+            });
+
             throw new Error(
-                `Character configuration validation failed:\n${errorMessages}`
+                "Character configuration validation failed. Check logs for details."
             );
         }
         throw error;