[xeonvs]

Release authorization

Stable version: 0.13.0. Tracked release issue: #264. The release workflow owns its issue state after the immutable receipt is read back. Planning issue #265 was completed with the feature PR and is not in this release issue set.

This PR advances the stable and next version markers to 0.13.0 and 0.14.0, records source epoch 1792761040 and the exact issue set, renders the Towncrier section, and updates the checksum-pinned GitLab example. It archives the complete repository plan and returns PLANS.md to its inactive state. External publication and readback remain pending in the archive's Post-Close Delivery section.

Reviewed input

• Protected feature PR Add automatic protected policy selection for MR reviews #266 merged as signed 24b0ba096672c711005ead2f9ddd47e3d557e4d9; its tree equals the reviewed feature head dc62581675d7cf99e0463b78876d3eddbe00a923.
• TestPyPI development run 39959060145 published and verified 0.13.0.dev122 wheel and sdist. Independent registry readback found both files and their SHA-256 digests.
• Local release preparation: 108 focused tests passed; plan lifecycle, instruction contract, documentation navigation, Ruff, local dependency audit, staged/tree/history Gitleaks, and Twine passed. Two source-epoch-controlled builds produced identical wheel and sdist bytes.
• The first release PR matrix identified a stale docs/configuration.md example version. The same release commit now corrects it and records a release-preparation guard; 114 focused environment, release, documentation and integration tests passed. The amended head awaits the protected matrix.
• The release notes are the exact new 0.13.0 Towncrier section followed by the adjacent v0.12.1...v0.13.0 comparison link.

After merge

The protected Release workflow must authorize the exact reviewed tree, publish and verify stable registry artifacts, provenance, the annotated tag, immutable GitHub Release and receipt, then update the tracked issue. Independent external and site readback follow without another repository PR.