Message handlers are not scalable

This page is a capture in the next bucket of the product backlog — a pre-sprint idea, not yet pulled into a sprint as a story.

Claude just mentioned this in passing:

Read(projects/ores.dq/src/messaging/dq_message_handler.cpp) ⎿  Error: File content (25665 tokens) exceeds maximum allowed tokens (25000). Please use offset and limit parameters to read specific portions of the file, or use the GrepTool to search for specific content. ● Read(projects/ores.dq/src/messaging/dq_message_handler.cpp) ⎿  Read 200 lines

This will not work when we have hundreds of types in a component. We need to split these files by message type.