fix: Update screen name on scope for detach/attach fragment re-attachment

onFragmentCreated is skipped during detach/attach navigation, so the
screen name was never updated for re-attached fragments. Mirror the
screen tracking into onFragmentViewCreated to cover that path.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: romtsn

sentry-android-fragment/src/main/java/io/sentry/android/fragment/SentryFragmentLifecycleCallbacks.kt

@@ -100,6 +100,9 @@ public class SentryFragmentLifecycleCallbacks(
     // "view created -> resumed" span for those paths. startTracing is idempotent, so for the
     // normal onFragmentCreated -> onFragmentViewCreated path this is a no-op.
     if (fragment.isAdded) {
+      if (scopes.options.isEnableScreenTracking) {
+        scopes.configureScope { it.screen = getFragmentName(fragment) }
+      }
       startTracing(fragment)
     }
   }

sentry-android-fragment/src/test/java/io/sentry/android/fragment/SentryFragmentLifecycleCallbacksTest.kt

@@ -43,9 +43,15 @@ class SentryFragmentLifecycleCallbacksTest {
       enableAutoFragmentLifecycleTracing: Boolean = false,
       tracesSampleRate: Double? = 1.0,
       isAdded: Boolean = true,
+      enableScreenTracking: Boolean = false,
     ): SentryFragmentLifecycleCallbacks {
       whenever(scopes.options)
-        .thenReturn(SentryOptions().apply { setTracesSampleRate(tracesSampleRate) })
+        .thenReturn(
+          SentryOptions().apply {
+            setTracesSampleRate(tracesSampleRate)
+            isEnableScreenTracking = enableScreenTracking
+          },
+        )
       whenever(span.spanContext)
         .thenReturn(SpanContext(SentryId.EMPTY_ID, SpanId.EMPTY_ID, "op", null, null))
       whenever(transaction.startChild(any<String>(), any<String>())).thenReturn(span)
@@ -271,6 +277,21 @@ class SentryFragmentLifecycleCallbacksTest {
       )
   }
 
+  @Test
+  fun `When fragment view is created via detach-attach, it should update screen name`() {
+    val sut =
+      fixture.getSut(enableAutoFragmentLifecycleTracing = true, enableScreenTracking = true)
+
+    sut.onFragmentViewCreated(
+      fixture.fragmentManager,
+      fixture.fragment,
+      view = mock(),
+      savedInstanceState = null,
+    )
+
+    verify(fixture.scope).screen = "androidx.fragment.app.Fragment"
+  }
+
   @Test
   fun `When fragment view is created after onFragmentCreated, it should not start a second span`() {
     // Normal path: onFragmentCreated already started the span; onFragmentViewCreated is a no-op