[codex] Normalize null request paths during routing

src/Http/Http.php

@@ -678,6 +678,7 @@ public function match(Request $request, bool $fresh = true): ?Route
         }
 
         $url = \parse_url($request->getURI(), PHP_URL_PATH);
+        $url = \is_string($url) ? ($url === '' ? '/' : $url) : '/';
         $method = $request->getMethod();
         $method = (self::REQUEST_METHOD_HEAD == $method) ? self::REQUEST_METHOD_GET : $method;
 
@@ -945,6 +946,7 @@ private function runInternal(Request $request, Response $response): static
             $route = self::$wildcardRoute;
             $this->route = $route;
             $path = \parse_url($request->getURI(), PHP_URL_PATH);
+            $path = \is_string($path) ? ($path === '' ? '/' : $path) : '/';
             $route->path($path);
 
             $this->setRequestResource('route', fn () => $route, []);

tests/HttpTest.php

@@ -483,6 +483,17 @@ public function testCanMatchFreshRoute(): void
         }
     }
 
+    public function testCanMatchRootRouteWhenUriHasNoPath(): void
+    {
+        $route = Http::get('/');
+
+        $_SERVER['REQUEST_METHOD'] = Http::REQUEST_METHOD_GET;
+        $_SERVER['REQUEST_URI'] = 'https://example.com?x=1';
+
+        $this->assertSame($route, $this->http->match(new Request()));
+        $this->assertSame($route, $this->http->getRoute());
+    }
+
     public function testCanRunRequest(): void
     {
         // Test head requests
@@ -556,6 +567,31 @@ public function testWildcardRoute(): void
         $_SERVER['REQUEST_URI'] = $uri;
     }
 
+    public function testWildcardRouteWhenUriHasNoPath(): void
+    {
+        $method = $_SERVER['REQUEST_METHOD'] ?? null;
+        $uri = $_SERVER['REQUEST_URI'] ?? null;
+
+        $_SERVER['REQUEST_METHOD'] = 'GET';
+        $_SERVER['REQUEST_URI'] = 'https://example.com?x=1';
+
+        Http::wildcard()
+            ->inject('response')
+            ->action(function ($response) {
+                $response->send('HELLO');
+            });
+
+        \ob_start();
+        @$this->http->run(new Request(), new Response());
+        $result = \ob_get_contents();
+        \ob_end_clean();
+
+        $_SERVER['REQUEST_METHOD'] = $method;
+        $_SERVER['REQUEST_URI'] = $uri;
+
+        $this->assertEquals('HELLO', $result);
+    }
+
     public function testCallableStringParametersNotExecuted(): void
     {
         // Test that callable strings (like function names) are not executed