Intent of codexCustomizations.ts ×4

All 3 exact tests in this concept. Every test is marked by where it enters the hierarchy.

mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/ 3 tests
- platform/ 3 tests
  - agentHost/ 3 tests
    
    test/ 3 tests
    
    node/ 3 tests
    
    codex/ 3 tests
    
    codexCustomizations.test|title=codexCustomizations de-duplicates skills by path across cwd entries and orders scopes repo/ 1 test
    
    user/ 1 test
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/platform/agentHost/test/node/codex/codexCustomizations.test|title=codexCustomizations de-duplicates skills by path across cwd entries and orders scopes repo/user/system|occurrence=1 Introduced here
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/platform/agentHost/test/node/codex/codexCustomizations.test|title=codexCustomizations groups skills by scope into read-only containers, sorted by name|occurrence=1 Introduced here
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/platform/agentHost/test/node/codex/codexCustomizations.test|title=codexCustomizations skill child uri is a file uri and id is stable|occurrence=1 Introduced here