docs(agents): finalize inventory container closeout

[blakinio]

Lifecycle-only closeout for OTC-20260819-track-a-inventory-containers-runtime after promotion #574.

This PR changes exactly one archived task record and persists terminal facts:

• source research(track-a): resolve inventory container semantics #559 = closed unmerged as superseded;
• superseded promotion attempt docs(track-a): promote inventory container evidence #573 = closed unmerged after base advanced;
• source audit review 4970813830 = ACCEPT_WITH_EDIT, INV-AUD-001 resolved by clean promotion, open material findings 0;
• clean promotion docs(track-a): promote inventory container evidence #574 head 03defe56368d710a5492873809404cc0c33b06ad;
• promotion exact-head CI 32241741642 = SUCCESS;
• promotion exact-head review 4971013704 = PASS;
• promotion squash merge 11c01a8b7ff2179b264b04ce6f3401be532f4e9c;
• accepted D09-D22 disposition remains exactly 14 PARTIAL / 0 DONE;
• authenticated live values, serialization/server acknowledgements and restart/relogin stability remain explicit gaps;
• runtime authority is closed and ownership is released.

Fresh lifecycle validator inventory-containers-closeout-validator-v1 on head 2fb30545f55d1d34f52a284480b8c9d9a7269c2b passed git diff --check, exact one-file scope, terminal-field assertions, and Track A agent runtime governance.

No research conclusion is broadened and no product/runtime, credentials, gameplay, workflow or shared coverage path is modified.

[blakinio]

Independent lifecycle validator inventory-containers-closeout-validator-v1: PASS on exact head 2fb30545f55d1d34f52a284480b8c9d9a7269c2b.

Verified against parent 11c01a8b7ff2179b264b04ce6f3401be532f4e9c:

• git diff --check: PASS;
• exactly one changed path, the archived task record;
• terminal task fields: status: completed, session_role: released, source #559 superseded, promotion #574/merge/CI/review facts present, open material findings 0, E2E NOT_APPLICABLE with reason, ownership released;
• Track A agent runtime governance: PASS.

Open material findings: 0. This is lifecycle-only and does not broaden any D09-D22 claim.