Add Konsist test to check Metro annotation.

tests/konsist/src/test/kotlin/io/element/android/tests/konsist/KonsistDiTest.kt

@@ -0,0 +1,35 @@
+/*
+ * Copyright 2025 New Vector Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+package io.element.android.tests.konsist
+
+import com.lemonappdev.konsist.api.Konsist
+import com.lemonappdev.konsist.api.ext.list.withAnnotationOf
+import com.lemonappdev.konsist.api.ext.list.withParameter
+import com.lemonappdev.konsist.api.verify.assertTrue
+import dev.zacsweers.metro.Assisted
+import dev.zacsweers.metro.Inject
+import org.junit.Test
+
+class KonsistDiTest {
+    @Test
+    fun `class annotated with @Inject should not have constructors with @Assisted parameter`() {
+        Konsist
+            .scopeFromProject()
+            .classes()
+            .withAnnotationOf(Inject::class)
+            .assertTrue(
+                additionalMessage = "Class with @Assisted parameter in constructor should be annotated with @AssistedInject and not @Inject"
+            ) { classDeclaration ->
+                classDeclaration.constructors
+                    .withParameter { parameterDeclaration ->
+                        parameterDeclaration.hasAnnotationOf(Assisted::class)
+                    }
+                    .isEmpty()
+            }
+    }
+}