fix(snapshot): Use HtmlReportWriter recording mode for sentry images

SnapshotVerifier is verify-only and always compares against golden
files. Replace it with HtmlReportWriter which has a recording mode
(paparazzi.test.record=true) that copies images with predictable
names to a configurable snapshot directory.

Pass snapshotRootDirectory=sentryOutputDir to HtmlReportWriter so
recorded images go to build/sentry-snapshots/images/ with names
matching the sidecar JSONs (Paparazzi_Preview_Test_{screenshotId}).

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

Author: runningcode

plugin-build/src/main/kotlin/io/sentry/android/gradle/snapshot/GenerateSnapshotTestsTask.kt

@@ -99,6 +99,7 @@ import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.unit.dp
 import app.cash.paparazzi.DeviceConfig
+import app.cash.paparazzi.HtmlReportWriter
 import app.cash.paparazzi.Paparazzi
 import app.cash.paparazzi.Snapshot
 import app.cash.paparazzi.SnapshotHandler
@@ -231,10 +232,13 @@ private object PaparazziPreviewRule {
                 else -> SessionParams.RenderingMode.SHRINK
             },
             snapshotHandler = TestNameOverrideHandler(
-                SnapshotVerifier(
-                    maxPercentDifference = tolerance,
-                    rootDirectory = sentryOutputDir,
-                )
+                when (System.getProperty("paparazzi.test.verify")?.toBoolean() == true) {
+                    true -> SnapshotVerifier(maxPercentDifference = tolerance)
+                    false -> HtmlReportWriter(
+                        maxPercentDifference = tolerance,
+                        snapshotRootDirectory = sentryOutputDir,
+                    )
+                }
             ),
             maxPercentDifference = tolerance,
         )

plugin-build/src/main/kotlin/io/sentry/android/gradle/snapshot/SentrySnapshotPlugin.kt

@@ -37,6 +37,7 @@ class SentrySnapshotPlugin : Plugin<Project> {
           "sentry.snapshot.output",
           sentrySnapshotRootDir.get().asFile.absolutePath,
         )
+        testTask.systemProperty("paparazzi.test.record", "true")
         testTask.doFirst {
           val imagesDir = File(sentrySnapshotRootDir.get().asFile, "images")
           if (imagesDir.exists()) {