feat(HarRecorder): add clear() method

Add clear() method to remove all recorded entries.

Author: claude

src/HarRecorder.php

@@ -95,6 +95,14 @@ public function count(): int
         return \count($this->entries);
     }
 
+    /**
+     * Clear all recorded entries.
+     */
+    public function clear(): void
+    {
+        $this->entries = [];
+    }
+
     /**
      * Create a HAR entry from the request/response pair.
      */

tests/src/Unit/HarRecorderTest.php

@@ -287,4 +287,22 @@ public function testCountReturnsCorrectNumber(): void
         $recorder->sendRequest(new Request('GET', new Uri('https://example.com')));
         $this->assertSame(2, $recorder->count());
     }
+
+    public function testClearRemovesAllEntries(): void
+    {
+        $innerClient = $this->createMock(ClientInterface::class);
+        $innerClient->method('sendRequest')->willReturn(new Response(200));
+
+        $recorder = new HarRecorder($innerClient);
+        $recorder->sendRequest(new Request('GET', new Uri('https://example.com/1')));
+        $recorder->sendRequest(new Request('GET', new Uri('https://example.com/2')));
+
+        $this->assertSame(2, $recorder->count());
+
+        $recorder->clear();
+
+        $this->assertSame(0, $recorder->count());
+        $this->assertEmpty($recorder->getEntries());
+        $this->assertEmpty($recorder->getHar()->getLog()->getEntries());
+    }
 }