L07-01 — Define minimal Job identity and field provenance #55

Outcome

Specify request/job/artwork/output/status links, unknown values, per-field source, schema version, and Core artifact references.

Parent and boundary

Parent: #8. Owner: proposed Job module. This issue owns one bounded slice of Job Spine; consume accepted upstream contracts and keep PDF/verdict/publication authority with Core.

Acceptance

• Two jobs may share an artwork without confusing output identity; unknown never becomes guessed default.
• Failure case: Job record cannot own a second PDF revision or verdict.

Required proof

Schema vectors, migration plan, and boundary review. Record the exact source SHA, test command or hosted run, fixture/artifact identity, and any skipped or unavailable lane. Run the repository's mapped proof and check-change gate for a PR.

Handoff

Record changed files, observed result, remaining risk, and a 1–3 sentence anti-slop review. Completion means acceptance evidence, not merely a merged implementation.

Sources

Approved master roadmap · Legacy/research input (legacy #404).