Add configuration from toml file

src/main.cpp

@@ -1 +1,38 @@
-int main(int argc, char *argv[]) {}
+#include "config.hpp"
+#include <iostream>
+
+int main(int argc, char *argv[]) {
+  std::string config_file = "config.toml";
+
+  if (argc > 1) {
+    config_file = argv[1];
+  }
+
+  auto config = weaseldb::ConfigParser::load_from_file(config_file);
+
+  if (!config) {
+    std::cerr << "Failed to load config from: " << config_file << std::endl;
+    std::cerr << "Using default configuration..." << std::endl;
+    config = weaseldb::Config{};
+  }
+
+  std::cout << "Configuration loaded successfully:" << std::endl;
+  std::cout << "Server bind address: " << config->server.bind_address
+            << std::endl;
+  std::cout << "Server port: " << config->server.port << std::endl;
+  std::cout << "Max request size: " << config->server.max_request_size_bytes
+            << " bytes" << std::endl;
+  std::cout << "Min request ID length: " << config->commit.min_request_id_length
+            << std::endl;
+  std::cout << "Request ID retention: "
+            << config->commit.request_id_retention_time.count() << " hours"
+            << std::endl;
+  std::cout << "Subscription buffer size: "
+            << config->subscription.max_buffer_size_bytes << " bytes"
+            << std::endl;
+  std::cout << "Keepalive interval: "
+            << config->subscription.keepalive_interval.count() << " seconds"
+            << std::endl;
+
+  return 0;
+}