[feat] remember remote display resolutions across connections

libs/wire/include/display_resolution_preferences.h

@@ -0,0 +1,58 @@
+/*
+ * @Author: DI JUNKUN
+ * @Date: 2026-11-11
+ * Copyright (c) 2026 by DI JUNKUN, All Rights Reserved.
+ */
+
+#ifndef _DISPLAY_RESOLUTION_PREFERENCES_H_
+#define _DISPLAY_RESOLUTION_PREFERENCES_H_
+
+#include <nlohmann/json.hpp>
+
+#include "display_resolution.h"
+
+namespace crossdesk {
+
+inline nlohmann::json DisplayResolutionPreferencesJson(
+    const std::vector<DisplayResolutionPreference> &preferences) {
+  auto result = nlohmann::json::array();
+  for (const auto &preference : preferences)
+    result.push_back({{"display_key", preference.display_key},
+                      {"width", preference.resolution.width},
+                      {"height", preference.resolution.height}});
+  return result;
+}
+
+inline bool ReadDisplayResolutionPreferences(
+    const nlohmann::json &values,
+    std::vector<DisplayResolutionPreference> &result) {
+  std::vector<DisplayResolutionPreference> parsed;
+  if (!values.is_array() || values.size() > kMaxResolutionDisplays)
+    return false;
+  try {
+    for (const auto &value : values) {
+      const auto &width = value.at("width");
+      const auto &height = value.at("height");
+      if (!width.is_number_integer() || !height.is_number_integer() ||
+          width < 1 || width > 32768 || height < 1 || height > 32768)
+        return false;
+      DisplayResolutionPreference preference{
+          value.at("display_key").get<std::string>(),
+          {width.get<int>(), height.get<int>()}};
+      if (!ValidDisplayResolutionPreference(preference) ||
+          std::any_of(parsed.begin(), parsed.end(), [&](const auto &existing) {
+            return existing.display_key == preference.display_key;
+          }))
+        return false;
+      parsed.push_back(std::move(preference));
+    }
+  } catch (const nlohmann::json::exception &) {
+    return false;
+  }
+  result = std::move(parsed);
+  return true;
+}
+
+} // namespace crossdesk
+
+#endif