update env.ts with default values

Author: Deepthi-Chand

env.ts

@@ -3,25 +3,27 @@ import { z } from 'zod';
 
 export const env = createEnv({
   server: {
-    KEYCLOAK_CLIENT_ID: z.string().min(1),
-    KEYCLOAK_CLIENT_SECRET: z.string().min(1),
-    AUTH_ISSUER: z.string().min(1),
-    NEXTAUTH_URL: z.string().url(),
-    NEXTAUTH_SECRET: z.string().min(1),
-    END_SESSION_URL: z.string().url(),
-    REFRESH_TOKEN_URL: z.string().url(),
-    BACKEND_URL: z.string().url(),
+    KEYCLOAK_CLIENT_ID: z.string().min(1).default('default-client-id'),
+    KEYCLOAK_CLIENT_SECRET: z.string().min(1).default('default-client-secret'),
+    AUTH_ISSUER: z.string().min(1).default('http://localhost:8080'),
+    NEXTAUTH_URL: z.string().url().default('http://localhost:3000'),
+    NEXTAUTH_SECRET: z.string().min(1).default('default-secret'),
+    END_SESSION_URL: z.string().url().default('http://localhost:8080/logout'),
+    REFRESH_TOKEN_URL: z.string().url().default('http://localhost:8080/token'),
+    BACKEND_URL: z.string().url().default('http://localhost:8000'),
     SENTRY_FEATURE_ENABLED: z.string().optional(),
     SENTRY_ORG_NAME: z.string().optional(),
     SENTRY_PROJECT_NAME: z.string().optional(),
   },
   client: {
     NEXT_PUBLIC_GA_ID: z.string().optional(),
-    NEXT_PUBLIC_PLATFORM_URL: z.string().url(),
+    NEXT_PUBLIC_PLATFORM_URL: z.string().url().default('http://localhost:3000'),
   },
 
   experimental__runtimeEnv: {
     NEXT_PUBLIC_GA_ID: process.env.NEXT_PUBLIC_GA_ID,
     NEXT_PUBLIC_PLATFORM_URL: process.env.NEXT_PUBLIC_PLATFORM_URL,
   },
+  
+  skipValidation: process.env.NODE_ENV === 'development' && !process.env.CI,
 });