fix: ktlint format and CDN config branching test race

- Collapse waitForPendingCleanups body expression to single line
- Wait for async branch cleanup before asserting CDN config deleted

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: dkrizan

ee/backend/app/src/main/kotlin/io/tolgee/ee/service/branching/BranchCleanupWorker.kt

@@ -110,6 +110,5 @@ class BranchCleanupWorker(
   /**
    * Blocks until all in-flight cleanups have finished (success or failure).
    */
-  fun waitForPendingCleanups(timeoutMs: Long = 30_000) =
-    branchCleanupTracker.waitForPendingCleanups(timeoutMs)
+  fun waitForPendingCleanups(timeoutMs: Long = 30_000) = branchCleanupTracker.waitForPendingCleanups(timeoutMs)
 }

ee/backend/tests/src/test/kotlin/io/tolgee/ee/api/v2/controllers/ContentDeliveryConfigBranchingTest.kt

@@ -13,6 +13,7 @@ import io.tolgee.fixtures.andIsBadRequest
 import io.tolgee.fixtures.andIsNotFound
 import io.tolgee.fixtures.andIsOk
 import io.tolgee.fixtures.node
+import io.tolgee.ee.service.branching.BranchCleanupWorker
 import io.tolgee.service.contentDelivery.ContentDeliveryConfigService
 import io.tolgee.testing.annotations.ProjectJWTAuthTestMethod
 import io.tolgee.testing.assert
@@ -37,6 +38,9 @@ class ContentDeliveryConfigBranchingTest : ProjectAuthControllerTest("/v2/projec
   @Autowired
   private lateinit var batchJobConcurrentLauncher: BatchJobConcurrentLauncher
 
+  @Autowired
+  private lateinit var branchCleanupWorker: BranchCleanupWorker
+
   @BeforeEach
   fun setup() {
     batchJobConcurrentLauncher.pause = true
@@ -130,6 +134,8 @@ class ContentDeliveryConfigBranchingTest : ProjectAuthControllerTest("/v2/projec
   fun `delete branch deletes CDN configs for that branch`() {
     performProjectAuthDelete("branches/${testData.featureBranch.id}").andIsOk
 
+    branchCleanupWorker.waitForPendingCleanups()
+
     executeInNewTransaction {
       contentDeliveryConfigService.find(testData.featureBranchCdnConfig.self.id).assert.isNull()
       // main branch configs are unaffected