Dedicated error reports for 11BE conditions

Conditions are ways to prevent users or automated apps to perform unreasonable actions.

Currently, transactions rejected by condition failure will simply be ignored quietly (on server side), we should utilize rpc-websocket "createError" server-side feature to add dedicated error code for different type of rejection due to condition check failure.

Start by tracing the server-side transaction handling where condition failures are currently ignored, then inspect the rpc-websocket createError feature. Define how each condition-rejection type should map to a dedicated error code, and verify that rejected transactions produce those errors instead of being silently ignored.

Written by the indexing model from the issue text.