# v1.48 Milestone Audit

Status: passed

## Scope Closed

- Phase `74`: collaborator profile and session continuity
- Phase `75`: research trajectory and cross-session continuity
- Phase `76`: mode learning and route reuse
- Phase `77`: docs, acceptance, and regression closure

## Production Outcome

`v1.48` now exposes the collaborator-continuity chain through durable runtime
artifacts:

- `collaborator_profile.active.json|md`
- `research_trajectory.active.json|md`
- `mode_learning.active.json|md`

Those surfaces are visible through production runtime bundle, status,
current-topic memory, and session-start restart paths.

## Verification Evidence

- targeted continuity slice:
  - `python -m pytest research/knowledge-hub/tests/test_aitp_service.py research/knowledge-hub/tests/test_schema_contracts.py research/knowledge-hub/tests/test_collaborator_continuity_contracts.py -q`
  - result: `131 passed`
- isolated acceptance:
  - `python research/knowledge-hub/runtime/scripts/run_collaborator_continuity_acceptance.py --json`
  - result: passed
- maintainability watch budget:
  - `python -m pytest research/knowledge-hub/tests/test_maintainability_budgets.py::MaintainabilityBudgetTests::test_watchlisted_files_stay_within_declared_budgets -q`
  - result: `1 passed`
- full knowledge-hub suite:
  - `python -m pytest research/knowledge-hub/tests -q`
  - result: `316 passed, 10 subtests passed`

## Residual Risk

- no next milestone has been selected yet
- future work should not collapse these continuity surfaces back into hidden heuristics
