PR_26180_OWNER_013-remove-legacy-layout

[ToolboxAid]

PR_26180_OWNER_013-remove-legacy-layout

Purpose

Remove active obsolete legacy layout references after the www/, api/, and dev/ migration stack, without changing product behavior or moving new www/api/dev files.

Stacked Dependency

• Base: PR_26180_OWNER_012-update-ci-and-scripts
• Source: PR_26180_OWNER_013-remove-legacy-layout
• Previous dependency: PR_26180_OWNER_012
• Next dependency: final layout validation PR

Summary

• Updated Project Instructions/version/project state/backlog to record PR013 as the remove-legacy-layout step.
• Retired active stale references to obsolete filesystem paths in dev tests, helper metadata, and Owner notes copy.
• Preserved public URL compatibility for /toolbox, /assets, /games, and related browser routes.
• Left untracked/ignored local legacy-looking files untouched.
• Added required Owner reports under dev/reports/.
• Created outcome ZIP at dev/workspace/zips/PR_26180_OWNER_013-remove-legacy-layout_delta.zip.

Validation

• git diff --check PASS
• npm run validate:canonical-structure PASS
• npm run validate:platform PASS, 8/8 scenarios
• Targeted legacy-path scan PASS
• Targeted bootstrap/static reference tests PASS, 32 tests

Reports

• dev/reports/codex_review.diff
• dev/reports/codex_changed_files.txt
• dev/reports/PR_26180_OWNER_013-remove-legacy-layout_report.md
• dev/reports/PR_26180_OWNER_013-remove-legacy-layout_branch-validation.md
• dev/reports/PR_26180_OWNER_013-remove-legacy-layout_requirement-checklist.md
• dev/reports/PR_26180_OWNER_013-remove-legacy-layout_validation-report.md
• dev/reports/PR_26180_OWNER_013-remove-legacy-layout_manual-validation-notes.md