add support for exact and /prefix/* matching

Author: Ericthilen

src/main/java/org/example/server/RoutePattern.java

@@ -0,0 +1,17 @@
+package org.example.server;
+
+public final class RoutePattern {
+
+    private RoutePattern() {}
+
+    public static boolean matches(String pattern, String path) {
+        if (pattern == null || path == null) return false;
+
+        if (pattern.endsWith("/*")) {
+            String prefix = pattern.substring(0, pattern.length() - 1);
+            return path.startsWith(prefix);
+        }
+
+        return pattern.equals(path);
+    }
+}