docs(adr): adopt released truth for public documentation

[JimCollinson]

Purpose

This PR accepts ADR-0016: public developer documentation describes stable software the public can obtain, rather than unreleased default-branch code.

Accepted decision

• Public documentation uses an explicit released baseline with exact provenance.
• Multi-component claims identify compatible released components, shipped dependencies, and relevant deployed-network state.
• Unreleased source may prepare future documentation but cannot support default public claims.
• Known defects and unsupported tasks are represented honestly.
• Pre-release documentation, if published, remains separate.
• A separate developer skill is outside this ADR.
• Implementation details and sequencing belong in a separately reviewed specification and plan.

Human acceptance and merge authorization

Jim Collinson accepted ADR-0016 after reviewing PR #98 on 2026-08-31 and explicitly authorized this PR to be merged after final mechanical gates were green. ADR-0016 is recorded as Accepted in this PR. This is the human decision; it is not autonomous AI acceptance.

Acceptance and merge do not authorize implementation or documentation remediation. That work requires a fresh release audit and a separately approved specification, plan, and slice.

Scope

This PR contains Accepted ADR-0016, the historical audit that motivated it, and GSD review evidence. It does not implement the policy, update rendered documentation, or decide skill ownership.

ADR-0016 is 497 words including metadata and headings. It partially supersedes only the public source-selection and provenance clauses in ADR-0003, ADR-0004, and ADR-0006.

Final-head evidence

• Final head: 789b8c672792464ea380626f745807902e443d10.
• ADR governance and all 20 governance tests pass locally.
• Process-required ADR Governance run 33395136858, job 99497748384, passed substantively on clean synthetic PR merge ref ab8cc592d0fa4b85e6166f31926380330b911c40.
• GitHub branch protection requires prose, sweep, and sweep-SHA-reachability. Runs 33395136772, 33395136754, and 33395136786 are green not applicable scope results; their main validations were skipped because this PR does not change files in their scopes.
• Both GitBook statuses passed.
• Acceptance-record code review passed with no findings; verification passed 7/7. Exact reports are committed in the branch.
• Final adversarial rerun: READY-WITH-NITS, with no CRITICAL, HIGH, or MEDIUM findings.
• Final Craft Review: PASS with no CONFORMANCE or SIMPLICITY findings.
• Carried LOW/NIT: the acceptance verification report does not identify the verifier/tool. Mechanical evidence was independently reproduced; no further commit is warranted.
• Clean-context remains explicitly waived by Jim for ADR-0016 only; no substitute review ran.

Merge gate

All acceptance and mechanical merge gates are satisfied. Jim authorized this PR to merge on 2026-08-31. Implementation remains unauthorized.