Add sweep_workstream_prose.py for agent-guidance files, sweep active workplan prose in-repo, tighten scan allowlist exclusions, and update ADR-001 closure protocol to workplan-first terminology.
Extend scan_workstream_terminology.py with allowlist loading, --apply-allowlist, and --check-prose-gate for regression detection. Commit the T08 exclusion config and unit tests; mark T01/T03/T08 done and activate the fleet workplan.