Implementiere sanften Shutdown und verbessere Server-Stopp-Logik

- Füge Signalhandler in `main.cpp` hinzu, um einen sanften Shutdown bei SIGINT und SIGTERM zu ermöglichen.
- Aktualisiere die `Server`- und `SSLServer`-Klassen, um die Stopp-Logik zu verbessern und Threads ordnungsgemäß zu beenden.
- Optimiere die Timeout-Werte in der `run`-Methode für eine schnellere Reaktion auf Shutdown-Signale.
- Ergänze Logging für den Server-Stopp-Prozess zur besseren Nachverfolgbarkeit.

src/main.cpp

@@ -4,25 +4,64 @@
 #include "core/ssl_server.h"
 #include "lib/database.h"
 #include <iostream>
+#include <csignal>
+#include <atomic>
+#include <thread>
+#include <chrono>
+
+// Global flag for graceful shutdown
+std::atomic<bool> g_running{true};
+std::shared_ptr<Yc::Lib::SSLServer> g_sslServer = nullptr;
+std::shared_ptr<Yc::Lib::Server> g_server = nullptr;
+
+// Signal handler for graceful shutdown
+void signalHandler(int signal) {
+    std::cout << "\n[YourChat] Received signal " << signal << ", shutting down gracefully..." << std::endl;
+    g_running = false;
+    
+    if (g_sslServer) {
+        g_sslServer->stop();
+    }
+    if (g_server) {
+        g_server->stop();
+    }
+}
 
 // main function
 int main(int, char **) {
+    // Set up signal handlers
+    std::signal(SIGINT, signalHandler);
+    std::signal(SIGTERM, signalHandler);
+    
     auto config = std::make_shared<Yc::Lib::Config>();
     auto database = std::make_shared<Yc::Lib::Database>(config);
     
     // Check if SSL is enabled
     bool sslEnabled = config->value("server", "ssl_enabled").asBool();
     
-    if (sslEnabled) {
-        std::cout << "[YourChat] Starting with SSL/TLS support" << std::endl;
-        auto sslServer = std::make_shared<Yc::Lib::SSLServer>(config, database);
-        sslServer->createRooms();
-        sslServer->run();
-    } else {
-        std::cout << "[YourChat] Starting without SSL/TLS support" << std::endl;
-        auto server = std::make_shared<Yc::Lib::Server>(config, database);
-        server->createRooms(config->group("rooms"));
-        server->run();
+    try {
+        if (sslEnabled) {
+            std::cout << "[YourChat] Starting with SSL/TLS support" << std::endl;
+            g_sslServer = std::make_shared<Yc::Lib::SSLServer>(config, database);
+            g_sslServer->createRooms();
+            g_sslServer->run();
+        } else {
+            std::cout << "[YourChat] Starting without SSL/TLS support" << std::endl;
+            g_server = std::make_shared<Yc::Lib::Server>(config, database);
+            g_server->createRooms(config->group("rooms"));
+            g_server->run();
+        }
+        
+        // Main loop - wait for shutdown signal
+        while (g_running) {
+            std::this_thread::sleep_for(std::chrono::milliseconds(100));
+        }
+        
+        std::cout << "[YourChat] Shutdown complete." << std::endl;
+        
+    } catch (const std::exception& e) {
+        std::cerr << "[YourChat] Error: " << e.what() << std::endl;
+        return 1;
     }
     
     return 0;