[LauraGPT]

Summary

Integrates @phoenixray2000's #3794 on current main. All seven reviewed changes are preserved: the top-level max_num_spks argument (default 15), a cap on automatic UMAP/HDBSCAN clustering, known-count precedence, validation, bilingual docs, and regression coverage. The original fork/head is untouched and the signed commit retains contributor credit.

The original head has six successful checks and one failed browser check. Its downloaded browser log contains runner-startup information only, so a specific root cause is not claimed. Current main already pins the browser runner to Ubuntu 24.04. This integration requires its own successful CI, not a rerun or bypass of the old failed head.

Validation

• New cap tests reproduced 41 expected failures on the pre-fix source. The candidate passed 66 focused CPU tests, no skips, with one sklearn future-default warning.
• A real L20Z ran a random-initialized, reduced CAMPPlus model in FP32, batch 32, over 2048 unique synthetic feature rows. The first-batch profiler recorded 972 CUDA kernel events. Actual CPU UMAP/HDBSCAN produced eight clusters; the cap reduced them to three, with cap 1/3/5 and the spectral path checked separately.
• Full hashes of the durable receipts, inputs, model parameters, RNG state, embeddings and labels were verified. These are synthetic execution and clustering-boundary tests, not pretrained diarization accuracy, BF16, the complete repository suite, or Nano evidence. No model weights were downloaded.
• The only changes from the tested base to current main are three unrelated ONNX files. All seven speaker-cap files and dependencies are byte-identical to the tested candidate, and the existing ONNX result is preserved. Completed experiments were not rerun.
• New-head and merged-main CI/artifacts must be accepted before completion. No release, PyPI upload, protection change or administrator bypass is included. fix(diarization): honor configurable speaker caps for long recordings #3794 will be closed as superseded only after integration, not described as a merged original commit.

[LauraGPT]

Normal signed+DCO merge completed; the final-main tree matches the verified 4158-blob integrated source. New-head and final-main CI succeeded, including the browser check. Actual artifact/log bytes and the source-commit markers were verified. Each NumPy matrix includes 50 cluster tests and the six earlier empty-batch regressions, with no failures or skips.

Local scope remains 66 focused CPU tests plus synthetic reduced-CAMPPlus CUDA/native-clustering validation, not pretrained diarization quality, BF16 or the full suite. #3794 is closed as superseded with credit and its original fork/head untouched. No administrator bypass, protection change, tag, release or PyPI upload was used.