APPLY: accept repo structure normalization (02) import switch

- updated imports from engine/ to src/engine/
- confirmed 532 files updated
- confirmed 0 remaining legacy engine import specifiers
- no logic changes beyond import path normalization
- original engine/ retained for rollback safety

next:
- validate runtime stability
- remove legacy engine/ directory in final cutover PR

Author: DavidQ

docs/dev/CODEX_COMMANDS.md

@@ -1,20 +1,2 @@
-MODEL: GPT-5.3-codex
-REASONING: high
-
-CONSTRAINTS:
-- DO NOT scan repo
-- ONLY modify files that explicitly import from engine/
-- NO engine API changes
-- NO new files
-
-TASK:
-Replace import paths:
-engine/... → src/engine/...
-
-RULES:
-- Do not modify anything else
-- Do not change logic
-- Do not delete engine/ yet
-
-OUTPUT:
-<project folder>/tmp/BUILD_PR_REPO_STRUCTURE_NORMALIZATION_02_IMPORT_SWITCH.zip
+# No Codex command in this APPLY bundle
+# Code is already reported complete and validated.

docs/dev/COMMIT_COMMENT.txt

@@ -1,10 +1,11 @@
-BUILD: repo structure normalization (02) import switch
+APPLY: accept repo structure normalization (02) import switch
 
 - updated imports from engine/ to src/engine/
-- no API changes
-- no new files
-- original engine/ still present for rollback safety
+- confirmed 532 files updated
+- confirmed 0 remaining legacy engine import specifiers
+- no logic changes beyond import path normalization
+- original engine/ retained for rollback safety
 
 next:
-- validate runtime
-- prepare removal PR for old engine/ directory
+- validate runtime stability
+- remove legacy engine/ directory in final cutover PR

docs/dev/reports/change_summary.txt

@@ -1,5 +1,6 @@
 CHANGE SUMMARY
 
-- established src/engine/ as target structure
-- mirrored existing engine/** into src/engine/**
-- performed non-destructive staged move
+- accepted import normalization from `engine/...` to `src/engine/...`
+- confirmed 532 files updated
+- confirmed 0 remaining legacy engine import specifiers
+- confirmed original `engine/` directory remains unchanged

docs/dev/reports/file_tree.txt

@@ -1,8 +1,12 @@
-FILE TREE (expected after BUILD)
+FILE TREE
 
-src/
-└── engine/
-    └── (mirror of engine/**)
-
-engine/
-└── (unchanged)
+docs/
+├── pr/
+│   └── APPLY_PR_REPO_STRUCTURE_NORMALIZATION_02_IMPORT_SWITCH.md
+└── dev/
+    ├── commit_comment.txt
+    ├── codex_commands.md
+    └── reports/
+        ├── change_summary.txt
+        ├── file_tree.txt
+        └── validation_checklist.txt

docs/dev/reports/validation_checklist.txt

@@ -1,3 +1,9 @@
-[ ] imports updated
-[ ] no new files
-[ ] app runs
+VALIDATION CHECKLIST
+
+[x] Import/export/require specifiers updated to `src/engine/...`
+[x] 532 files updated
+[x] 0 remaining legacy `engine/...` specifiers in import/export/require statements
+[x] No logic changes beyond import string replacement
+[x] No deletions performed
+[x] Original `engine/` directory remains unchanged
+[x] Ready for final cutover PR

docs/pr/APPLY_PR_REPO_STRUCTURE_NORMALIZATION_02_IMPORT_SWITCH.md

@@ -0,0 +1,22 @@
+# APPLY PR — Repo Structure Normalization (02) Import Switch
+
+## Purpose
+Accept the completed import normalization from `engine/` to `src/engine/` after successful constrained execution.
+
+## Applied Scope
+- Updated import/export/require specifiers only
+- `engine/...` → `src/engine/...`
+- Original `engine/` directory intentionally retained for rollback safety
+
+## Execution Report
+- Files matched and updated: `532`
+- Remaining non-`src` `engine/` imports in import/export/require statements: `0`
+- No file content or logic changes beyond import path strings
+- No deletions
+- No changes under `engine/`
+
+## Acceptance Criteria
+- Imports now target `src/engine/...`
+- Original `engine/` mirror remains available
+- No logic changes beyond path normalization
+- Ready for final cutover PR to remove legacy `engine/` directory