Merge current codex/tool-json-schema-dsl into codex/canonical-tool-output

packages/hooks/hooks-codex/tests/coverage-cases.ts

@@ -76,7 +76,7 @@ export function defineCoverageCases(groups: CoverageGroup | readonly CoverageGro
       const located = await capture(dir())
       expect(located.payload.transcript_path).toBe(located.expected)
       expect((await capture()).payload.transcript_path).toBeNull()
-    }, 15_000) // Two real agent/hook subprocess loops need loaded pre-push runner headroom.
+    }, 15_000) // Two real agent/hook subprocess loops need process startup and teardown headroom.
 
     it('UserPromptSubmit block (exit 2) → rejected turn; default reason on empty stderr', async () => {
       const d = dir()