fix: enhance error logging by replacing console.error with a centralized logger across the application to improve security and maintainability

lib/utils/logger.ts

@@ -0,0 +1,16 @@
+/**
+ * Dev-only logger that suppresses client-side output in production.
+ * Server-side logs always pass through (they go to server logs, not the browser).
+ */
+
+const isServer = typeof window === 'undefined'
+const isDev = process.env.NODE_ENV === 'development'
+
+export const logger = {
+  error(...args: unknown[]) {
+    if (isServer || isDev) console.error(...args)
+  },
+  warn(...args: unknown[]) {
+    if (isServer || isDev) console.warn(...args)
+  },
+}