eb4fade710
---ci--- project: acdl phase: 2 milestone: v1.28 status: execute persona: backend-engineer --- Extract dispatch_action() shared business-logic dispatch + _to_http_response error mapper. lambda_handler (Lambda) + cli_main (CLI) become thin input parsers that both delegate to dispatch_action. The action routing, contract validation, DynamoDB write, error reporting live in shared functions — single source of truth (NFR-7). tests/test_dual_use.py verifies both paths produce the same output for the same input, both call dispatch_action, and code share >=80% (CAP-026). 41 existing ingestor tests still pass.