Langflow 1.10's Component base class defines ctx as a @property returning
the flow-level graph.context store; a DataInput named ctx is silently
shadowed at attribute access, so the edge-delivered payload never reaches
build_out(). Renamed the field in the five downstream Flow-2 wrappers;
build_flows.py edges target ctx_in.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>