release: 0.52.1 — the self-healing dispatch heals the ternary path (folds in the 0.52.0 release branch)

[michalharakal]

The release branch for 0.52.1 — and the merge-back of the previously local-only release/0.52.0 branch (now pushed), whose Maven artifacts were already published and are consumed by SKaiNET-transformers 0.52.0, but whose commits (CHANGELOG 0.52.0 entry, README highlights, docs bumps, release: 0.52.0, regenerated matrices) never reached develop. This PR closes that gap and cuts the next patch on top, following the established release-commit pattern:

docs(changelog): 0.52.1 entry
docs(readme): 0.52.1 highlights and BOM coordinate
docs: bump version references to 0.52.1        (antora.yml skainet_version, tutorial coordinates)
release: 0.52.1                                (VERSION_NAME)
docs: regenerate operator and kernel matrices at 0.52.1

0.52.1 content

One fix, the completion of 0.52.0's own theme: the ternary kernel packs join the self-healing dispatch SPI (#1240/#1241). A consumer on this release loads BITNET_B1_58/BITNET_PLANES weights and dispatches to the vendored NeoGPU kernels with zero bootstrap code. Validated downstream: SKaiNET-transformers#370 drops its last explicit kernel installs against these artifacts and decodes BitNet-2B4T at full speed on discovery alone (verified with an unsigned publishToMavenLocal of this branch's content as 0.52.1).

Also inherited from develop since the 0.52.0 cut: #1239 (androidNativeArm32/Arm64 publishing across the downstream chain — already described in the 0.52.0 CHANGELOG entry, and present in the published 0.52.0 artifacts).

After merging — maintainer steps to finish the release

1. Tag 0.52.0 at 19a1b88d (the release: 0.52.0 commit — matches the already-published 0.52.0 artifacts) and push the tag.
2. Tag 0.52.1 at b5a64be8 (release: 0.52.1) and push.
3. Fast-forward main to the 0.52.1 release point (the 0.51.0 pattern: main sits on the release commit).
4. Publish the signed 0.52.1 artifacts to Maven Central from this branch state.
5. Merge SKaiNET-transformers#370 once the artifacts resolve.

Verification: self-heal dispatch test green at 0.52.1 (ternary_f32_gemv/ffm, ternary_planes_matmul/ffm discovered cold); matrices regenerated via generateKernelMatrix/generateOperatorDocs; REUSE compliance left to CI (tool not installed locally).

🤖 Generated with Claude Code

https://claude.ai/code/session_01YKeDSK4JF295y53Uvez954

[github-actions]

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Generated Files:

• Operator documentation: docs/modules/operators/_generated_/
• JSON schema output: operators.json

Artifacts:

• Download the documentation-preview-1242 artifact to view the complete documentation locally.

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[michalharakal]

Superseded: 0.52.0 was never actually published to Central (the locally-consumed artifacts were an unsigned publishToMavenLocal), so there is no released 0.52.0 to preserve and no need for a 0.52.1. The reworked release/0.52.0 branch folds #1241 into the single 0.52.0 release — new PR incoming.