Data Validation

Goal: inspect, validate, enrich incoming data from Data Adapters
- Identifying types of validation required throughout the python pipeline
- functional even if not connected: module that can be consumed by the pipeline later, even if we don't have a place for it (ie. could be imported)

Start by examining the incoming Data Adapters and the existing Python pipeline to identify the types of validation required. The issue names no files or tests, so the scope needs clarification before implementation. Done means a functional, standalone validation module that can be imported by the pipeline even before it is connected.

Written by the indexing model from the issue text.