Jurisdiction packs

A matter can carry several jurisdiction codes. Packs supply the legal reasoning and citation context for substantive model stages. Add a directory beneath dochaus/jurisdiction/ with these files:

<CODE>/
  profile.json
  prompt.md

Codes must start with a letter or digit and contain only letters, digits, underscores or hyphens. The profile's code must match the directory name.

{
  "code": "EW",
  "name": "England & Wales",
  "citationStyle": "OSCOLA",
  "preferredModel": null
}

name identifies the pack in the interface. citationStyle describes the citation convention. preferredModel is currently descriptive metadata; it does not select a provider, model or inference region. Model selection comes from this installation's explicitly saved primary and fast settings.

Write prompt.md as concise guidance on governing law, the authority hierarchy, citation conventions and any jurisdiction-specific reasoning limits. Ground the guidance in general legal practice and preserve relevant provenance.

The ingest service exposes packs through GET /jurisdictions and stores the user's selected codes in the matter's matter.json jurisdictions array. The pack loader validates codes and loads their profiles and prompt fragments. Stage context supplies the selected packs to substantive stages; draft orchestration, routing and narration receive no jurisdiction packs. Legal policy adds each applicable pack as a <jurisdiction> system block. Missing prompt files produce a warning and profile-only context; unknown or mismatched profiles are not loaded.