@mytec: iter10 ready for testing

frontend/src/utils/logger.ts

@@ -0,0 +1,18 @@
+/**
+ * Production-safe logger.
+ * - In development: all levels log normally
+ * - In production: only errors log (warnings suppressed, logs suppressed)
+ */
+const isDev = import.meta.env.DEV;
+
+export const logger = {
+  log: (...args: unknown[]): void => {
+    if (isDev) console.log(...args);
+  },
+  warn: (...args: unknown[]): void => {
+    if (isDev) console.warn(...args);
+  },
+  error: (...args: unknown[]): void => {
+    console.error(...args);
+  },
+};