Added TimingFilter to measure request duration and log ms

Author: Cavve

src/main/java/org/juv25d/App.java

@@ -2,6 +2,7 @@
 
 import org.juv25d.filter.IpFilter;
 import org.juv25d.filter.LoggingFilter;
+import org.juv25d.filter.TimingFilter;
 import org.juv25d.logging.ServerLogging;
 import org.juv25d.http.HttpParser;
 import org.juv25d.plugin.NotFoundPlugin; // New import
@@ -27,6 +28,7 @@ public static void main(String[] args) {
             Set.of()
         ), 0);
         pipeline.addGlobalFilter(new LoggingFilter(), 0);
+        pipeline.addGlobalFilter(new TimingFilter(), 0);
 
         // Initialize and configure SimpleRouter
         SimpleRouter router = new SimpleRouter();

src/main/java/org/juv25d/filter/TimingFilter.java

@@ -0,0 +1,23 @@
+package org.juv25d.filter;
+
+import org.juv25d.http.HttpRequest;
+import org.juv25d.http.HttpResponse;
+import org.juv25d.logging.ServerLogging;
+
+import java.io.IOException;
+import java.util.logging.Logger;
+
+public class TimingFilter implements Filter {
+
+    private static final Logger logger = ServerLogging.getLogger();
+
+    @Override
+    public void doFilter(HttpRequest req, HttpResponse res, FilterChain chain) throws IOException {
+        long start = System.nanoTime();
+
+        chain.doFilter(req, res);
+
+        long durationMs = (System.nanoTime() - start) / 1_000_000;
+        logger.info(req.method() + " " + req.path() + " took " + durationMs + " ms");
+    }
+}