feat(providers): refresh NVIDIA NIM models

[backryun]

Summary

• Replace the stale NVIDIA NIM static catalog with the current 12-model lineup and ordering.
• Align the reviewed live snapshot, retained trial entries, and key-validation probe with that catalog.
• Replace obsolete model-presence contracts with an exact ordered-catalog regression test while preserving reasoning, vision, tool-calling, and per-model lockout coverage.

Related Issues

• No linked issue.

Validation

• Change type: provider
• Focused NVIDIA and catalog tests: 97 passed
• npm run test:vitest: 51 files, 465 tests passed
• npm run typecheck:core
• npm run check:provider-consistency
• Prettier check for every changed source/test file
• npm run lint -- --pass-on-unpruned-suppressions: 0 code errors
• npm run lint: the active release base still contains unrelated unused suppression entries, so strict suppression pruning exits 2
• Reconciled with the current release/v3.8.51 base at 1a0375fba
• Production-code changes include updated automated tests in this PR

Tests Added Or Updated

• tests/unit/nvidia-nim-registry-6108.test.ts
• tests/unit/nvidia-eol-catalog.test.ts
• tests/unit/nvidia-minimax-m3-removed-3329.test.ts
• tests/unit/nvidia-nim-catalog-expansion-2373.test.ts (removed obsolete catalog contract)
• tests/unit/nvidia-validation-model-3116.test.ts
• tests/unit/nvidia-nim-validator.test.ts
• tests/unit/nvidia-passthrough-models-6773.test.ts
• tests/unit/nvidia-410-model-scope.test.ts
• tests/unit/catalog-updates-v3x.test.ts
• tests/unit/free-models.test.ts
• tests/unit/model-capabilities-registry.test.ts
• tests/unit/opencode-go-effort-aliases-8353.test.ts
• tests/integration/freeModelBenchmarkShared.ts

Coverage Notes

• The exact ordered 12-model contract is asserted directly against the NVIDIA registry.
• Companion tests cover snapshot/trial-catalog alignment, the current validation probe, carried capability flags, and provider-scoped fallback behavior.
• The obsolete expansion test was removed because it asserted models that the current hosted catalog no longer exposes; its relevant guarantees are covered by the exact catalog test.

Reviewer Notes

• google/diffusiongemma-26b-a4b-it is intentionally present because it is part of the current hosted catalog.
• The trial catalog only retains previously documented trial entries that remain in the hosted list; newly listed models are not automatically labeled free.
• No database migration or runtime routing behavior changes are included.