row224: trim whitespace in plain-text failure receipt

agents/della/work/queue-224/BUILD.md

@@ -300,10 +300,10 @@ test at packages/cli/tests/thread-launch.test.mjs:216:1
 ✖ REQ-THREAD-2 REQ-LAUNCH-1 a running thread counts against its model's limit and an idle-stopped one doesn't (185.485131ms)
   AssertionError [ERR_ASSERTION]: Expected values to be strictly equal:
   + actual - expected
-  
+
   + 'harness-binary-missing'
   - 'capacity-full'
-  
+
       at TestContext.<anonymous> (file:///mnt/storage/scratch/della-row224-r2/packages/cli/tests/thread-launch.test.mjs:227:10)
       at async Test.run (node:internal/test_runner/test:1409:7)
       at async Test.processPendingSubtests (node:internal/test_runner/test:974:7) {
@@ -327,3 +327,7 @@ test at packages/cli/tests/thread-launch.test.mjs:1:1
 ✖ packages/cli/tests/thread-launch.test.mjs (62982.9717ms)
   'Promise resolution is still pending but the event loop has already resolved'
 ```
+
+Receipt correction: copied test output contained two whitespace-only lines;
+complete-range diff-check caught them. Trimmed those log lines in this
+follow-up; no test/code or failure text changed, and no test was rerun.