fix: address all 12 PR review issues

src/client/client_cli.c

@@ -70,10 +70,14 @@ int main(int argc, char* argv[]) {
     save_to_disk = true;
   }
 
-  Config* config = config_create(str_dup(PROTOCOL_VERSION), NULL, NULL, save_to_disk, false, false,
-                                 false, false, 5, false, 0);
   int exit_code = 0;
   bool config_owned_by_pipeline = false;
+  Config* config = config_create(str_dup(PROTOCOL_VERSION), NULL, NULL, save_to_disk, false, false,
+                                 false, false, 5, false, 0);
+  if (config == NULL) {
+    exit_code = 1;
+    goto cleanup;
+  }
 
   int positional_args[2];
   int positional_count = 0;

src/client/scanner.c

@@ -91,7 +91,19 @@ DirectoryScanner* directory_scanner_create_full(char* root_directory, bool use_m
   scanner->max_size = max_size;
   scanner->min_size = min_size;
   scanner->follow_symlinks = follow_symlinks;
-  queue_enqueue(scanner->directories, str_dup(root_directory));
+  char* root_copy = str_dup(root_directory);
+  if (root_copy == NULL) {
+    for (int i = 0; i < scanner->include_count; i++)
+      free(scanner->include_patterns[i]);
+    free(scanner->include_patterns);
+    for (int i = 0; i < scanner->exclude_count; i++)
+      free(scanner->exclude_patterns[i]);
+    free(scanner->exclude_patterns);
+    queue_destroy(scanner->directories);
+    free(scanner);
+    return NULL;
+  }
+  queue_enqueue(scanner->directories, root_copy);
   return scanner;
 }