0075: CLI decisions use one production-scoped token

Status: accepted for development.

Decision

Remove --base-revision. Use --decision-base TOKEN from inspect for writes that depend on observed knowledge. One token includes production, revision and sequence; it also represents an empty production. Remove the CLI-only choice between scoped tokens and bare revision IDs. Keep explicit additive commands without a base and reject global bases for portable exchange, whose proposal already supplies its scope.

Help leads with create, import, adopt, resolve, inspect, changes and handoff tasks. The command hierarchy and JSON format 1 remain unchanged: this syntax cleanup does not change machine-output shapes, values or exit categories.

Migration and standards impact

Read inspect --json and pass its decision_base instead of querying revisions latest and passing its ID. Semantic conflicts keep their exact base and superseding revision details. No automatic retry is introduced.

Reviewed against the contributor standards policy: no domain, persistence, protocol, identifier or standards mapping changes.