Migrate checker, collector, schema, audit, and packaging workflows

[zoeyrose]

Outcome

Replace supported offline Python content workflows in bounded domain groups with the MIT toolkit while preserving useful behavior and improving one-owner safety.

Scope and invariants

• Inventory current content/tools entry points and classify parser/model, schema, catalog, validation, collection, runtime build, world audit, syntax evaluation, interfaces, tests, and obsolete workflows.
• For verified approved-grantor modules, choose direct MIT reuse, staged reuse as a parity oracle, or Rust translation; retain provenance links and attribution.
• Implement each retained workflow over Implement a bounded lossless authored-document model #3-Publish versioned Rust APIs, JSON schemas, fixtures, and CLI releases #7 rather than embedding duplicate parsers/catalogs/transaction logic.
• Define old/new command mapping, deterministic outputs, diagnostics, bounds, cache behavior, and removal gate.
• Keep server runtime Python migration separate; this issue is offline authoring/build tooling.

Acceptance criteria

• Every supported old entry point maps to a released toolkit command/API or an explicit retirement decision.
• Behavior/output differences are reviewed semantic improvements, not accidental omissions; fixtures are licensed/provenanced.
• Content CI and packaging run without old Python tooling for migrated groups.
• No permanent dual parser/catalog/transaction path remains after a group closes.
• Whole-corpus runtime and performance meet recorded budgets.

Dependencies and parallelization

Depends on grant audit #2 and core APIs. Parallelize by workflow group after shared parser/catalog/transaction contracts freeze.

Licensing

Toolkit code is MIT. Original past contributions by a person listed in the merged approved MIT provenance-grantor registry in atrinik/atrinik#275 may be copied, migrated, translated, or relicensed under MIT only after a complete, non-shallow Git-history audit, including renames and moves, proves the selected material is that grantor's solely authored original work and contains no embedded third-party or conflicting-licensed material. Record the exact evidence, applicable grantor, and destination. Mixed authored data and fixtures retain their actual licenses.