Improve integration test diagnostics in an attempt to catch run crashes

.github/workflows/integration-tests.yml

@@ -40,7 +40,9 @@ jobs:
         if: failure()
         with:
           name: Results
-          path: test_output/IntegrationTests.xcresult.zip
+          path: |
+            test_output/IntegrationTests.xcresult.zip
+            test_output/console*
           retention-days: 7
           if-no-files-found: ignore
 

IntegrationTests/SupportingFiles/IntegrationTests.xctestplan

@@ -18,6 +18,7 @@
         }
       ]
     },
+    "diagnosticCollectionPolicy" : "Always",
     "environmentVariableEntries" : [
       {
         "key" : "INTEGRATION_TESTS_HOST",

Tools/Sources/Commands/CI/IntegrationTests.swift

@@ -32,6 +32,10 @@ struct IntegrationTests: AsyncParsableCommand {
         } catch {
             testsFailed = true
             logger.error("\n❌ Integration tests failed.\n")
+            
+            // Preserve the app's logs alongside the results so that they can be uploaded as artifacts.
+            logger.info("🗂️ Collecting log files…")
+            _ = try? await CI.run(.path("/bin/zsh"), ["-cu", "cp /Users/Shared/console* \(CI.testOutputDirectory)"])
         }
         
         // Validate logs only when tests passed — log files won't be meaningful otherwise