core/.trellis/tasks/09-20-secure-data-contracts/check.jsonl

{"file":".trellis/spec/backend/quality-guidelines.md","reason":"Focused compiler/runtime test selection"}
{"file":".trellis/spec/backend/error-handling.md","reason":"Typed crypto failure and diagnostic rules"}
{"file":".trellis/spec/backend/directory-structure.md","reason":"Single owner across checker, emitter and runtime"}