refactor: implement all core services

include/NetworkService.h

@@ -0,0 +1,22 @@
+#pragma once
+#include "Service.h"
+#include "NetworkManager.h"
+#include "NodeContext.h"
+
+class NetworkService : public Service {
+public:
+    NetworkService(NetworkManager& networkManager);
+    void registerEndpoints(ApiServer& api) override;
+    const char* getName() const override { return "Network"; }
+
+private:
+    NetworkManager& networkManager;
+
+    // WiFi scanning endpoints
+    void handleWifiScanRequest(AsyncWebServerRequest* request);
+    void handleGetWifiNetworks(AsyncWebServerRequest* request);
+
+    // Network status endpoints
+    void handleNetworkStatus(AsyncWebServerRequest* request);
+    void handleSetWifiConfig(AsyncWebServerRequest* request);
+};