[oliverholworthy]

Allow different models for summary quality, query metadata, self-sufficiency, relevance, and localization judgments. Unspecified stages continue using the existing judge configuration.

For example, add a text-only self-sufficiency judge to an existing configuration:

judges:
  self_sufficiency:
    model: your-text-judge
    endpoint: https://text.example.com/v1
    credential_env: JUDGE_API_KEY

Each override supplies its own model settings. Routing, batching, token checks, caching, and exported provenance consistently use the resolved model. Automatic table-of-contents confirmation uses the fallback judge, which is also included in validation and provenance when active.

Validation: UV_LINK_MODE=symlink make all — 917 passed, 2 optional Nemotron-consumer tests skipped. Includes 17 new routing, cache, budget, and provenance tests. No live-model benchmark.