feat: Add manager route

src/main/kotlin/app/revanced/api/configuration/services/ManagerService.kt

@@ -0,0 +1,38 @@
+package app.revanced.api.configuration.services
+
+import app.revanced.api.configuration.repository.BackendRepository
+import app.revanced.api.configuration.repository.BackendRepository.BackendOrganization.BackendRepository.BackendRelease.Companion.first
+import app.revanced.api.configuration.repository.ConfigurationRepository
+import app.revanced.api.configuration.schema.*
+
+internal class ManagerService(
+    private val backendRepository: BackendRepository,
+    private val configurationRepository: ConfigurationRepository,
+) {
+    suspend fun latestRelease(): APIRelease<APIManagerAsset> {
+        val managerRelease = backendRepository.release(
+            configurationRepository.organization,
+            configurationRepository.manager.repository,
+        )
+
+        val managerAsset = APIManagerAsset(
+            managerRelease.assets.first(configurationRepository.manager.assetRegex).downloadUrl,
+        )
+
+        return APIRelease(
+            managerRelease.tag,
+            managerRelease.createdAt,
+            managerRelease.releaseNote,
+            listOf(managerAsset),
+        )
+    }
+
+    suspend fun latestVersion(): APIReleaseVersion {
+        val managerRelease = backendRepository.release(
+            configurationRepository.organization,
+            configurationRepository.manager.repository,
+        )
+
+        return APIReleaseVersion(managerRelease.tag)
+    }
+}