Collapse consecutive stubs into receive_messages

What does this MR do?

The RSpec/ReceiveMessages cop flags multiple consecutive allow(x).to receive(:msg).and_return(val) stubs on the same object that can be collapsed into a single allow(x).to receive_messages(...) call.

This autocorrects 12 specs (bin, commands, components, controllers) to use receive_messages and drops their entries from .rubocop_todo/rspec/receive_messages.yml, continuing to chip away at that TODO list.

Testing

bundle exec rubocop <files>
# => 12 files inspected, no offenses detected

bundle exec rspec <files>
# => 428 examples, 0 failures

All affected specs pass locally. The two spec/bin/* files use fast_spec_helper and are run individually (they cannot share a process with spec_helper-loading specs); both pass. The "Missing metadata feature_category" warnings from some examples are pre-existing and unrelated to this change.

Author checklist

• RuboCop clean on all affected files
• All affected specs pass locally
• Each merged stub verified equivalent (no interleaved message expectations on the stubbed object)