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trail-mate/docs/audits/POST_REFACTOR_FINAL_CLOSEOUT_REPORT.md

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Post-Refactor Final Closeout Report

Conclusion

This architecture refactor is complete.

Next work is not architecture refactor.

The remaining work is not a continuation of the refactor. It is feature work, targeted renderer migration, targeted deprecated alias deletion, or normal platform/build maintenance.

Completed

Area Result
Phase 5-7 runtime ownership Runtime ownership boundaries and legacy burn-down register established.
Phase 8 directory/app shell/UX/menu/screen graph apps/ semantics converged, final app shells established, UX menu/screen graph became portable.
Phase 9 runtime adoption and legacy burn-down Runtime presenters and entry adoption paths established; ChatDelivery, KeyVerification, and MapOverlay legacy adapters burned down to runtime modules with alias build include surface removed.
Phase 10 primary path migration LinuxSim, GTK page registry, and LVGL descriptor paths became primary; failed adoption is unavailable-on-failure.
Phase 11 renderer descriptor consumption LinuxSim renderer, GTK page registry renderer, and LVGL descriptor renderer probe consume primary descriptors; LinuxSim/GTK/LVGL fallback branches are deleted.
Phase 12 closeout fallback deletion guardrail, deprecated alias cleanup plan, architecture freeze, and final guardrail checker established.
Batch 4 root legacy elimination root legacy/ removed; historical source roots are recorded only in docs/archive/REMOVED_LEGACY_ROOTS.md.

Remaining Contained Debt

Debt Status Next action type
GTK real widget rewrite contained; descriptor page registry exists targeted renderer migration
LVGL real widget/menu rewrite contained; descriptor menu model exists targeted device renderer migration
LVGL fallback deletion deleted; guardrail recorded no active fallback remains
removed legacy source roots deleted; history recorded in docs/archive no source archive retained
compatibility alias headers retired from build include surface keep runtime headers as the active API
map tile/route/tracker remaining legacy surfaces registered contained debt targeted debt deletion

Post-Refactor Rule

New features must enter through:

app shell / UX pack / presentation graph / descriptor path / renderer-safe consumption

New features must not introduce:

  • new Legacy* bridges
  • new hardcoded page registry as primary source
  • renderer-level UX pack selection
  • module dependencies on app shells
  • root legacy/
  • legacy/app_implementations/
  • active checker requiring legacy roots
  • source archive under docs/archive
  • new legacy_source_descriptor
  • new transitional UI layer

Final Guardrail

tools/architecture/check_post_refactor_final_ready.py is the final post-refactor gate. It runs or verifies the Phase 8-11 gates, checks Phase 12 closeout documents, enforces final app shell directory semantics, runs the no-root legacy checker, and blocks regression to burned-down legacy headers or renderer-level UX selection.

Final Statement

This round of architecture refactor is closed. Future work should be planned as feature delivery or narrowly scoped debt deletion, not as another broad structure-building phase.