Sync model_registry sets with architecture_adapter_factory and add in…

[RecreationalMath]

Description

Fixes #1350.

HF_SUPPORTED_ARCHITECTURES and CANONICAL_AUTHORS_BY_ARCH are documented to track adapters registered in architecture_adapter_factory.py, with internal-only adapters excluded. Qwen3MoeForCausalLM and BaichuanForCausalLM were wired in the factory but missing from one or both registry sets, so the scraper silently classified their models as unsupported.

Changes:

• Add Qwen3MoeForCausalLM, BaichuanForCausalLM, and BaiChuanForCausalLM (Baichuan-1 casing) to HF_SUPPORTED_ARCHITECTURES.
• Add Qwen3MoeForCausalLM: ["Qwen"] and BaiChuanForCausalLM: ["baichuan-inc"] to CANONICAL_AUTHORS_BY_ARCH.
• Extend the module docstring's documented exclusion list to align with the factory's actual contents: add TransformerLensNative (introduced in Created a system for running Native models #1353) to the named internal-only group, and explicitly name the three factory-internal alias casings (Gemma1, Neo, NeoX) that route to canonical adapters under names HF does not emit (Gemma, GPTNeo, GPTNeoX).
• Add a bidirectional invariant test (TestRegistrySyncedWithFactory) in tests/unit/tools/test_model_registry.py: every non-excluded factory key must be present in both registry sets, and every registry entry must have a matching factory adapter. While building this test, it surfaced TransformerLensNative (added in Created a system for running Native models #1353) as a third silent drift item alongside the originally-reported Qwen3-MoE and Baichuan omissions. Future adapter PRs that forget to update the registry will be flagged by this test in CI from now on.

Type of change

• Bug fix (non-breaking change which fixes an issue)

Checklist:

• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• I have not rewritten tests relating to key interfaces which would affect backward compatibility