Jorge/10574 read fully

[Jorge-Lopes]

refs: #10574

Description

This pull request aims to facilitate the observation of the behavior described in issue #10574 where the readFully method from the Agoric client-utils package fails when attempting to read a vstorage node.

To achieve this goal, the following changes have been made:

• A simple test has been added to the acceptance proposal of a3p-integration to demonstrate the issue in a controlled environment.
• Existing console.debug calls in packages/client-utils/src/vstorage.js have been uncommented to provide additional debugging insights during execution.

These changes are intended solely to help identify and understand the root cause of the issue, not to provide a final solution.

Error analysis

The error arises during the readFully method's execution, as observed in the log output. When invoked, the method follows this sequence:

• Initial Behavior:
  The readAt method successfully retrieves data for the latestQuestion node at the highest block height (439) and appends it to the parts list. Subsequently, the method performs the same operation for block height 367, adding the respective node data to the list.

• Error Occurrence:
  During the next iteration of the while loop, the readStorage function throws an error. This failure is signaled by the response code of 38.

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