Schema Validation in APIConfigLambda

Users can pass resource parameters in to config tables. Idea here would be to include a schema validation function in that lambda to catch any issues before they happen and return an error to user.

Start by locating the APIConfigLambda entry point and tracing how resource parameters reach the config tables. Define the validation scope and expected error behavior before implementation. Done means invalid parameters are rejected before they cause downstream issues and the user receives an actionable error.

Written by the indexing model from the issue text.