@@ -117,7 +117,7 @@ Rules:
 
 ## Current Version/Date
 
-- Project Instructions Version: 2026.06.28.012
+- Project Instructions Version: 2026.06.28.013
 - Date: 2026-06-28
 - Owner: OWNER
 
 
@@ -1,6 +1,6 @@
 # Project Instructions Version
 
-Current Project Instructions Version: 2026.06.28.012
+Current Project Instructions Version: 2026.06.28.013
 
 Last Updated: 2026-06-28
 
@@ -20,6 +20,7 @@ Last Updated: 2026-06-28
 - Moved developer-only local runtime/bootstrap entrypoints under `dev/local-runtime/` and preserved the public npm command surface.
 - Finalized moved test and validation path assumptions for the `www/`, `api/`, and `dev/local-runtime/` layout.
 - Updated CI, package scripts, and developer utilities for the `www/`, `api/`, and `dev/` layout.
+- Removed active references to obsolete legacy layout paths after the `www/`, `api/`, and `dev/` migration steps.
 - Codex must read this version file and the latest repository copy of `PROJECT_INSTRUCTIONS.md` before performing work.
 - Codex must discard previously remembered Project Instructions and treat the repository copy as authoritative.
 - Codex must validate canonical report and ZIP paths, branching model, and legacy path avoidance before work proceeds.
@@ -1,7 +1,7 @@
 # Project State
 
 ```yaml
-project_state_version: "2026.06.28.012"
+project_state_version: "2026.06.28.013"
 last_updated: "2026-06-28"
 current_main_commit: "40de767476d70cadfd1292c916844c2f31b6f185"
 repository_status:
@@ -10,18 +10,18 @@ repository_status:
   runtime_database: "Postgres"
   creator_metadata: "API to Postgres"
   creator_assets: "API to R2"
-project_instructions_version: "2026.06.28.012"
-repository_structure_version: "2026.06.28.012"
-canonical_layout_version: "2026.06.28.012"
+project_instructions_version: "2026.06.28.013"
+repository_structure_version: "2026.06.28.013"
+canonical_layout_version: "2026.06.28.013"
 active_teams:
   - "Owner"
   - "Alfa"
   - "Bravo"
   - "Charlie"
   - "Delta"
   - "Golf"
-latest_owner_pr: "PR_26180_OWNER_012-update-ci-and-scripts"
-latest_structure_pr: "PR_26180_OWNER_012-update-ci-and-scripts"
+latest_owner_pr: "PR_26180_OWNER_013-remove-legacy-layout"
+latest_structure_pr: "PR_26180_OWNER_013-remove-legacy-layout"
 valid_top_level_folders:
   - "api/"
   - "deploy/"
 
@@ -39,9 +39,9 @@ The backlog is the authoritative source for determining the next logical PRs.
 - Team: Owner
 - Product Area: Repository Architecture Simplification
 - Status: Active
-- Percent Complete: 70%
-- Active PR: PR_26180_OWNER_012-update-ci-and-scripts
-- Next Milestone: Remove or retire obsolete legacy paths after all references are updated
+- Percent Complete: 80%
+- Active PR: PR_26180_OWNER_013-remove-legacy-layout
+- Next Milestone: Final layout validation and completion report
 - Source / Reference: `dev/build/ProjectInstructions/repository/repository_layout_architecture_plan.md`; `dev/build/ProjectInstructions/repository/www_migration_map.md`
 
 ## Game Journey MVP
 
@@ -34,6 +34,8 @@ No browser, API, server, test, script, or runtime files move in the scaffold or
 
 `PR_26180_OWNER_012-update-ci-and-scripts` updates CI, package scripts, and developer utilities for the `www/`, `api/`, and `dev/` layout while preserving the public developer command surface.
 
+`PR_26180_OWNER_013-remove-legacy-layout` removes active stale references to obsolete legacy paths after the tracked `www/`, `api/`, and `dev/` migration steps.
+
 ## Proposed Future Layout
 
 ```text
 
@@ -0,0 +1,74 @@
+# PR_26180_OWNER_013-remove-legacy-layout Branch Validation
+
+Generated: 2026-06-28T23:33:01.682Z
+
+| Check | Result | Evidence |
+|---|---|---|
+| Current branch | PASS | PR_26180_OWNER_013-remove-legacy-layout |
+| Expected branch | PASS | PR_26180_OWNER_013-remove-legacy-layout |
+| Stacked base | PASS | PR_26180_OWNER_012-update-ci-and-scripts is an ancestor of HEAD |
+| Worktree reviewed | PASS | Only governance, dev test/reference cleanup, reports, and one path-copy Owner page update are in scope |
+| Runtime behavior change | PASS | No product behavior change intended |
+| New www/api/dev files moved | PASS | No move of new www/api/dev application files in this PR |
+| Legacy folders deleted | PASS | No tracked legacy folders remained to delete; untracked/ignored local files left untouched |
+
+HEAD at start of report: b802afcd33b892d33610a577b160cb096fe2e721
+
+## Current Status Snapshot
+
+```text
+M dev/build/ProjectInstructions/PROJECT_INSTRUCTIONS.md
+ M dev/build/ProjectInstructions/PROJECT_INSTRUCTIONS_VERSION.md
+ M dev/build/ProjectInstructions/PROJECT_STATE.md
+ M dev/build/ProjectInstructions/backlog/BACKLOG_MASTER.md
+ M dev/build/ProjectInstructions/repository/repository_layout_architecture_plan.md
+ M dev/tests/dev-runtime/AdminNotesBoundary.test.mjs
+ M dev/tests/dev-runtime/ApiMenuPathCleanup.test.mjs
+ M dev/tests/final/ToolchainEngineIntegrationValidation.test.mjs
+ M dev/tests/fixtures/games/AsteroidsValidation.test.mjs.patch
+ M dev/tests/fixtures/tools/VectorNativeTemplate.test.mjs.patch
+ M dev/tests/fixtures/workspace-v2/uat.manifest.json
+ M dev/tests/helpers/playwrightV8CoverageReporter.mjs
+ M dev/tests/helpers/testCoverageCatalog.mjs
+ M dev/tests/playwright_installation.txt
+ M dev/tests/production/TestsValidationCombinedPass.test.mjs
+ M dev/tests/runtime/V2BlockFakeSessionSave.test.mjs
+ M dev/tests/runtime/V2ClearStaleMergePreview.test.mjs
+ M dev/tests/runtime/V2ConfirmPreviewEnableState.test.mjs
+ M dev/tests/runtime/V2CrossToolFlow.test.mjs
+ M dev/tests/runtime/V2CrossToolMergeBlock.test.mjs
+ M dev/tests/runtime/V2DeterministicStateTransitions.test.mjs
+ M dev/tests/runtime/V2DiffViewerMessaging.test.mjs
+ M dev/tests/runtime/V2DiffViewerSummaryCounts.test.mjs
+ M dev/tests/runtime/V2EnableStateFeedback.test.mjs
+ M dev/tests/runtime/V2MergeConflictSummary.test.mjs
+ M dev/tests/runtime/V2MergeOutputPersistence.test.mjs
+ M dev/tests/runtime/V2MergePreviewOverlayFix.test.mjs
+ M dev/tests/runtime/V2MergeResultSummary.test.mjs
+ M dev/tests/runtime/V2MergeStateSingleSourceOfTruth.test.mjs
+ M dev/tests/runtime/V2MergeStateStatusReset.test.mjs
+ M dev/tests/runtime/V2MergedRecentSessionRegistration.test.mjs
+ M dev/tests/runtime/V2SaveLibraryFromRecentSession.test.mjs
+ M dev/tests/runtime/V2SavedSessionRowActions.test.mjs
+ M dev/tests/runtime/V2SelectionSyncRowActions.test.mjs
+ M dev/tests/runtime/V2SessionLibraryActionCleanup.test.mjs
+ M dev/tests/runtime/V2SessionLibraryActionLabel.test.mjs
+ M dev/tests/runtime/V2SessionLibraryActions.test.mjs
+ M dev/tests/runtime/V2SessionLibraryCardOverwrite.test.mjs
+ M dev/tests/runtime/V2SessionLibrarySaveGuard.test.mjs
+ M dev/tests/runtime/V2SessionStateModelConsolidation.test.mjs
+ M dev/tests/runtime/V2SessionToolsCloseoutBundle.test.mjs
+ M dev/tests/runtime/V2SessionUxStabilization.test.mjs
+ M dev/tests/runtime/V2ToolLaunch.test.mjs
+ M dev/tests/runtime/V2UndoButtonRender.test.mjs
+ M dev/tests/runtime/V2UndoEnableStateActualAvailability.test.mjs
+ M dev/tests/runtime/V2UndoEnableStateRefresh.test.mjs
+ M dev/tests/runtime/V2UndoLastMerge.test.mjs
+ M dev/tests/runtime/V2WorkspaceDefaultToolInitialization.test.mjs
+ M dev/tests/schemas/tool.manifest.schema.json
+ M dev/tests/shared/ContractFixtureIsolationValidation.test.mjs
+ M dev/tests/shared/ContractIndexValidation.test.mjs
+ M dev/tests/shared/ContractNegativeCaseCoverage.test.mjs
+ M dev/tests/tools/ToolManifestBoundary.test.mjs
+ M www/owner/notes.html
+```
@@ -0,0 +1,10 @@
+# PR_26180_OWNER_013-remove-legacy-layout Manual Validation Notes
+
+Generated: 2026-06-28T23:33:01.682Z
+
+- Reviewed changed files for scope: governance/status docs, dev test/reference cleanup, validation evidence, and one Owner notes archived path reference.
+- Confirmed no UI redesign, API behavior change, database change, or product feature work is included.
+- Confirmed public URL references remain intentionally preserved for route compatibility.
+- Confirmed tracked obsolete root legacy folders were not present for deletion in this PR.
+- Confirmed untracked/ignored local legacy-looking files were not staged or committed.
+- Outcome ZIP is expected at dev/workspace/zips/PR_26180_OWNER_013-remove-legacy-layout_delta.zip.
@@ -0,0 +1,104 @@
+# PR_26180_OWNER_013-remove-legacy-layout Report
+
+Generated: 2026-06-28T23:33:01.682Z
+Team: Owner
+Mode: BUILD_PR
+Branch: PR_26180_OWNER_013-remove-legacy-layout
+Base dependency: PR_26180_OWNER_012-update-ci-and-scripts
+Stack order: after PR_26180_OWNER_012, before final layout validation
+
+## Purpose
+
+Remove active obsolete legacy layout references after the www/api/dev migration stack, without changing product behavior or moving the new www/api/dev files.
+
+## Scope Summary
+
+- Updated Project Instructions, project state, backlog, and repository layout plan to version 2026.06.28.013 and this PR's migration status.
+- Retired active references to obsolete filesystem paths such as root tests/, docs_build/, root toolbox filesystem references, and dev/build/dev contract spec paths.
+- Updated dev test helpers and validation evidence to use canonical dev/tests, www/, and dev/build/ProjectInstructions paths.
+- Kept public URL compatibility references such as /toolbox, /assets, and /games intentionally intact.
+- Updated www/owner/notes.html only to point its Admin Notes status/help text at the archived dev location already used by the service.
+
+## Files Changed
+
+- dev/build/ProjectInstructions/PROJECT_INSTRUCTIONS.md
+- dev/build/ProjectInstructions/PROJECT_INSTRUCTIONS_VERSION.md
+- dev/build/ProjectInstructions/PROJECT_STATE.md
+- dev/build/ProjectInstructions/backlog/BACKLOG_MASTER.md
+- dev/build/ProjectInstructions/repository/repository_layout_architecture_plan.md
+- dev/reports/PR_26180_OWNER_013-remove-legacy-layout_branch-validation.md
+- dev/reports/PR_26180_OWNER_013-remove-legacy-layout_manual-validation-notes.md
+- dev/reports/PR_26180_OWNER_013-remove-legacy-layout_report.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/codex_changed_files.txt
+- dev/reports/codex_review.diff
+- dev/tests/dev-runtime/AdminNotesBoundary.test.mjs
+- dev/tests/dev-runtime/ApiMenuPathCleanup.test.mjs
+- dev/tests/final/ToolchainEngineIntegrationValidation.test.mjs
+- dev/tests/fixtures/games/AsteroidsValidation.test.mjs.patch
+- dev/tests/fixtures/tools/VectorNativeTemplate.test.mjs.patch
+- dev/tests/fixtures/workspace-v2/uat.manifest.json
+- dev/tests/helpers/playwrightV8CoverageReporter.mjs
+- dev/tests/helpers/testCoverageCatalog.mjs
+- dev/tests/playwright_installation.txt
+- dev/tests/production/TestsValidationCombinedPass.test.mjs
+- dev/tests/runtime/V2BlockFakeSessionSave.test.mjs
+- dev/tests/runtime/V2ClearStaleMergePreview.test.mjs
+- dev/tests/runtime/V2ConfirmPreviewEnableState.test.mjs
+- dev/tests/runtime/V2CrossToolFlow.test.mjs
+- dev/tests/runtime/V2CrossToolMergeBlock.test.mjs
+- dev/tests/runtime/V2DeterministicStateTransitions.test.mjs
+- dev/tests/runtime/V2DiffViewerMessaging.test.mjs
+- dev/tests/runtime/V2DiffViewerSummaryCounts.test.mjs
+- dev/tests/runtime/V2EnableStateFeedback.test.mjs
+- dev/tests/runtime/V2MergeConflictSummary.test.mjs
+- dev/tests/runtime/V2MergeOutputPersistence.test.mjs
+- dev/tests/runtime/V2MergePreviewOverlayFix.test.mjs
+- dev/tests/runtime/V2MergeResultSummary.test.mjs
+- dev/tests/runtime/V2MergeStateSingleSourceOfTruth.test.mjs
+- dev/tests/runtime/V2MergeStateStatusReset.test.mjs
+- dev/tests/runtime/V2MergedRecentSessionRegistration.test.mjs
+- dev/tests/runtime/V2SaveLibraryFromRecentSession.test.mjs
+- dev/tests/runtime/V2SavedSessionRowActions.test.mjs
+- dev/tests/runtime/V2SelectionSyncRowActions.test.mjs
+- dev/tests/runtime/V2SessionLibraryActionCleanup.test.mjs
+- dev/tests/runtime/V2SessionLibraryActionLabel.test.mjs
+- dev/tests/runtime/V2SessionLibraryActions.test.mjs
+- dev/tests/runtime/V2SessionLibraryCardOverwrite.test.mjs
+- dev/tests/runtime/V2SessionLibrarySaveGuard.test.mjs
+- dev/tests/runtime/V2SessionStateModelConsolidation.test.mjs
+- dev/tests/runtime/V2SessionToolsCloseoutBundle.test.mjs
+- dev/tests/runtime/V2SessionUxStabilization.test.mjs
+- dev/tests/runtime/V2ToolLaunch.test.mjs
+- dev/tests/runtime/V2UndoButtonRender.test.mjs
+- dev/tests/runtime/V2UndoEnableStateActualAvailability.test.mjs
+- dev/tests/runtime/V2UndoEnableStateRefresh.test.mjs
+- dev/tests/runtime/V2UndoLastMerge.test.mjs
+- dev/tests/runtime/V2WorkspaceDefaultToolInitialization.test.mjs
+- dev/tests/schemas/tool.manifest.schema.json
+- dev/tests/shared/ContractFixtureIsolationValidation.test.mjs
+- dev/tests/shared/ContractIndexValidation.test.mjs
+- dev/tests/shared/ContractNegativeCaseCoverage.test.mjs
+- dev/tests/tools/ToolManifestBoundary.test.mjs
+- www/owner/notes.html
+
+## Legacy Layout Decision
+
+No tracked root legacy folders were removed because git tracking showed no active tracked files under obsolete root locations such as docs_build/, tests/, archive/, tmp/, projects/, scripts/, project-instructions/, dev/docs_build/, dev/project-instructions/, dev/workspace/artifacts/, or dev/build/dev/.
+
+Local ignored or untracked legacy-looking files were left untouched and were not staged.
+
+## Compatibility Notes
+
+Browser public routes remain unchanged. References to /toolbox, /assets, /games, /account, /admin, and related public URLs are compatibility routes, not obsolete filesystem references.
+
+## Dependency Order
+
+- Previous dependency: PR_26180_OWNER_012-update-ci-and-scripts
+- Current PR: PR_26180_OWNER_013-remove-legacy-layout
+- Next dependency: final layout validation PR
+
+## Owner Recommendation
+
+Ready for review after validation, with no product behavior changes and no new feature scope.
@@ -0,0 +1,14 @@
+# PR_26180_OWNER_013-remove-legacy-layout Requirement Checklist
+
+Generated: 2026-06-28T23:33:01.682Z
+
+| Requirement | Result | Notes |
+|---|---|---|
+| Remove or retire obsolete legacy layout paths | PASS | Active stale references were updated to canonical www/api/dev/dev-build paths. |
+| Confirm references are updated before removal | PASS | Targeted legacy-path scan passed for active code/config/tests/package/CI surfaces. |
+| Hard stop if active runtime/test/CI/package references still point to obsolete paths | PASS | No blocking active references found after cleanup. |
+| Preserve documented compatibility references only where intentional | PASS | Public URLs like /toolbox and /assets remain intentionally preserved. |
+| Do not change product behavior | PASS | Changes are reference/path cleanup and validation alignment. |
+| Do not move new www/api/dev files | PASS | No www/api/dev application move was performed. |
+| Update required reports under dev/reports | PASS | Required reports generated. |
+| Produce repo-structured ZIP under dev/workspace/zips | PASS | ZIP generated during closeout. |
@@ -0,0 +1,31 @@
+# PR_26180_OWNER_013-remove-legacy-layout Validation Report
+
+Generated: 2026-06-28T23:33:01.682Z
+
+## Commands
+
+| Command | Result |
+|---|---|
+| git diff --check | PASS |
+| npm run validate:canonical-structure | PASS |
+| npm run validate:platform | PASS |
+| targeted legacy-path scan | PASS |
+| node --test dev/tests/dev-runtime/TeamAwareBootstrap.test.mjs dev/tests/runtime/V2ToolLaunch.test.mjs dev/tests/shared/ContractIndexValidation.test.mjs dev/tests/dev-runtime/AdminNotesBoundary.test.mjs dev/tests/tools/ToolManifestBoundary.test.mjs dev/tests/production/TestsValidationCombinedPass.test.mjs dev/tests/shared/ContractFixtureIsolationValidation.test.mjs dev/tests/shared/ContractNegativeCaseCoverage.test.mjs dev/tests/dev-runtime/ApiMenuPathCleanup.test.mjs | PASS |
+
+## Platform Validation
+
+`npm run validate:platform` completed successfully with 8/8 scenarios passing.
+
+## Canonical Structure
+
+`npm run validate:canonical-structure` completed successfully with 0 blocking violations.
+
+## Legacy Path Scan
+
+Targeted scan excluded reports, archives, and generated workspace output, and checked active GitHub workflows, api, dev/scripts, dev/tests, src, www, and package.json for obsolete filesystem references.
+
+Result: PASS.
+
+## Bootstrap Command Check
+
+Covered by targeted TeamAwareBootstrap test. The public command surface remains preserved by prior PR012 and is not changed by this PR.