fix(workflows): adopt QPK drift workflow with updated AAB parser

[Pigbibi]

Scope

• Update only drift job reusable-workflow uses@ to merged QPK #552 commit 33e506f1c89977f55f284d777fb5b748cfd30798, which checks out AIAuditBridge 2351c987d6df12d48355aaa5803db8b089476310.
• Update the existing workflow test and make the independent preflight/runtime QPK refs explicit: preflight stays aae333fe8b3fe5aeb32e1ff135ab14ea7db32420; runtime quant_platform_kit_ref stays cd6edbb32bb85ec6d280c2dafea4dd8ecd3ccdab.
• Exactly two files. No package pins, QPK_PIN, dependencies, lockfiles, profiles, strategy logic, permissions, schedules or dispatch conditions changed.

Validation

• Existing focused workflow test baseline: 1 passed.
• Tests first: new expected workflow ref against old workflow produced 1 failed at the exact uses-ref assertion.
• After changing only the workflow uses-ref: 1 passed in 0.02s.
• Tests ran with an existing read-only interpreter, clean environment, worktree-local PYTHONPATH, network denied and bytecode/cache disabled; no environment changes or dependency installation.
• actionlint on drift-check.yml: passed.
• git diff --check and cached diff check: passed.
• Exact two-file scope and workflow uses-only comparison: passed; independent runtime refs and triggers unchanged.
• Natural required CI will run configured actionlint and engineering tests/lint/build. No manual drift run was dispatched.

Adoption boundary

This completes the targeted caller reference change for the already merged QPK/AAB fixes; it does not upgrade QPK runtime libraries or perform an organization-wide pin rollout. Existing authorized scheduling can naturally adopt it after merge. AAB checkout crosses 59 commits; the main conversation separately verified existing parser/orchestrator/pipeline/drift entrypoint compatibility offline.

No real research, AI/provider/broker invocation, artifact acquisition or manual workflow dispatch was performed. Passing CI is not evidence of an actual drift/review cycle. Merge remains coordinated by the main conversation; auto-merge is not enabled.