Skip invalid socket when accept() fails (#457)

When Acceptor.accept() returns an error (e.g., "Too many open files"),
the server was continuing to process an invalid socket, causing resource
leaks and potential infinite error loops.
Add continue statement to skip processing when accept() fails, allowing
the server to retry on the next iteration instead of crashing.
Fixes resource exhaustion DoS vulnerability where server would enter
error loop instead of handling gracefully.
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src/TNetwork.cpp

@@ -243,10 +243,11 @@ void TNetwork::TCPServerMain() {
             ip::tcp::socket ClientSocket = Acceptor.accept(ClientEp, ec);
             if (ec) {
                 beammp_errorf("Failed to accept() new client: {}", ec.message());
+                continue;
             }
             TConnection Conn { std::move(ClientSocket), ClientEp };
             std::thread ID(&TNetwork::Identify, this, std::move(Conn));
-            ID.detach(); // TODO: Add to a queue and attempt to join periodically
+            ID.detach();
         } catch (const std::exception& e) {
             beammp_errorf("Exception in accept routine: {}", e.what());
         }