Point task data guide to the unified access source snapshot

README.md

@@ -59,9 +59,10 @@ Private evaluation files, owner mappings, and secret keys are excluded.
 ## Use the data
 
 Read the task README and its source terms before download.
-Use the [BrainPilotBench source checkout](https://github.com/NeuroAIHub/BrainPilotBench/tree/feat/invasive-task-collection) for environments, protocols, and the CLI.
+Use the [BrainPilotBench source checkout](https://github.com/NeuroAIHub/BrainPilotBench/tree/a79bd29f4cb533f63013b9d4bc0b11fba5e66b53) for environments, protocols, and the CLI.
 Its data locks bind exact HF commits, byte counts, and SHA-256 digests.
-The feature branch remains under review. This data publication does not merge GitHub main or publish a software release.
+The v1 task collection is on GitHub main. This source snapshot adds the unified download and preparation workflow.
+The workflow update is on a separate feature branch, not yet merged into main. No new npm release is available.
 
 The task manifests describe public files only. Private evaluation and official source-benchmark scores remain separate.
 BCI IV-4 includes the prepared Train/Valid split, not its original evaluation interval.