feat: add hasConnect() and hasSsl() methods to Timings

Add missing has*() methods for connect and ssl timing fields to maintain
API consistency with other optional timing fields (blocked, dns).

- Add hasConnect() method to check if connect timing is present
- Add hasSsl() method to check if SSL/TLS timing is present
- Add comprehensive tests for both new methods
- Follow existing pattern of checking for -1.0 sentinel value

This resolves the API inconsistency where connect and ssl fields
used the -1.0 sentinel value but lacked the corresponding has*() methods.

Author: claude

src/Timings.php

@@ -93,6 +93,11 @@ public function setDns(float $dns): self
         return $this;
     }
 
+    public function hasConnect(): bool
+    {
+        return -1.0 !== $this->connect;
+    }
+
     public function getConnect(): float
     {
         return $this->connect;
@@ -108,6 +113,11 @@ public function setConnect(float $connect): self
         return $this;
     }
 
+    public function hasSsl(): bool
+    {
+        return -1.0 !== $this->ssl;
+    }
+
     public function getSsl(): float
     {
         return $this->ssl;

tests/src/Unit/TimingsTest.php

@@ -71,4 +71,32 @@ public function testHasDns(): void
         $this->assertTrue($timings->hasDns());
         $this->assertEquals(50.3, $timings->getDns());
     }
+
+    public function testHasConnect(): void
+    {
+        $timings = new Timings();
+
+        // Default value is -1, so hasConnect() should return false
+        $this->assertFalse($timings->hasConnect());
+        $this->assertEquals(-1, $timings->getConnect());
+
+        // After setting a value, hasConnect() should return true
+        $timings->setConnect(75.2);
+        $this->assertTrue($timings->hasConnect());
+        $this->assertEquals(75.2, $timings->getConnect());
+    }
+
+    public function testHasSsl(): void
+    {
+        $timings = new Timings();
+
+        // Default value is -1, so hasSsl() should return false
+        $this->assertFalse($timings->hasSsl());
+        $this->assertEquals(-1, $timings->getSsl());
+
+        // After setting a value, hasSsl() should return true
+        $timings->setSsl(25.7);
+        $this->assertTrue($timings->hasSsl());
+        $this->assertEquals(25.7, $timings->getSsl());
+    }
 }