feat(bigtable): support SessionCheckAndMutateRow on the session client

[mutianf]

No description provided.

[gemini-code-assist]

Code Review

This pull request adds support for conditional row mutations (CheckAndMutateRow) in the session-based data path of the Google Cloud Bigtable Java client. It introduces CheckAndMutateRowShim to route conditional mutations to tables and authorized views, and updates the session-based classes (TableAsync, AuthorizedViewAsync, TableBase, and VRpcDescriptor) to handle the new request and response types. Feedback on the changes suggests passing debugTagTracer to DivertingUnaryCallable in decorateCheckAndMutateRow to ensure proper tracing and consistency with other decorated methods.

[gemini-code-assist]

For consistency and to ensure proper tracing/debugging, consider passing debugTagTracer as the fifth argument to DivertingUnaryCallable, similar to how it is done in decorateMutateRow.

  @Override
  public UnaryCallable<ConditionalRowMutation, Boolean> decorateCheckAndMutateRow(
      UnaryCallable<ConditionalRowMutation, Boolean> classic, UnaryCallSettings<?, ?> settings) {
    return new DivertingUnaryCallable<>(
        configManager, classic, checkAndMutateRowShim, Util.extractTimeout(settings), debugTagTracer);
  }