build error fixes

Author: ProgrammerKR

src/main.c

@@ -230,15 +230,16 @@ static void runFile(const char *path) {
 
     // --- Pipeline Step 3: Bytecode Gen & Execution ---
     // Use interpretAST to handle bytecode gen and execution properly using ObjFunction
-    printf("Executing...\n");
+    // printf("Executing...\n");
     // Use interpretAST to handle bytecode gen and execution properly using ObjFunction
     // printf("Executing...\n");
     // printf("DEBUG: Calling interpretAST from main...\n");
     InterpretResult result = interpretAST(&vm, statements);
     // printf("DEBUG: Returned from interpretAST.\n");
 
     if (result != INTERPRET_OK) {
-        fprintf(stderr, "Execution Failed.\n");
+        // fprintf(stderr, "Execution Failed.\n");
+        exit(70);
     }
 
     // --- Pipeline Step 4: LLVM CodeGen (Optional/Future) ---

src/stdlib/stdlib_core.c

@@ -34,7 +34,6 @@ extern Value native_clock(int argCount, Value* args);
 static Value native_len(int argCount, Value* args) {
     if (argCount < 1) return NUMBER_VAL(0);
     if (IS_STRING(args[0])) return NUMBER_VAL((double)AS_STRING(args[0])->length);
-    if (IS_STRING(args[0])) return NUMBER_VAL((double)AS_STRING(args[0])->length);
     if (IS_LIST(args[0])) {
          return NUMBER_VAL((double)AS_LIST(args[0])->count);
     }