SweetGold promoted models v2

SweetGold promoted models v2

models-v2 is the second immutable SweetGold model catalog. It adds the first
cross-distribution accepted policy, hierarchical-return-ctde, while retaining
the two v1 checkpoints for complete, clean installations.

New promoted policy

The M14 policy combines the accepted coordinated CTDE actor with a
deterministic high-level return, deposit and recharge supervisor. On 50 fresh
final seeds in each of six declared scenarios it achieved:

• 100% bee survival and 0% invalid actions everywhere;
• median honey equal to 148.47% of Assignment;
• worst-case honey equal to 101.16% under scarce nectar;
• harsh-weather honey of 141.46 versus Assignment's 99.48.

The selected supervisor uses safety margin 6 and recharge fraction 0.8.

Shared weights

hierarchical-return-ctde.pt and coordinated-ctde.pt intentionally have the
same SHA-256 digest. M14 did not retrain or silently mutate the neural actor.
Its new policy identity is the shared checkpoint plus the versioned supervisor
code and parameters in the registry.

Assets and verification

The release contains all three promoted checkpoint names, the Apache-2.0
license and models-v2-manifest.json. The manifest declares exact byte sizes,
SHA-256 digests, model-card paths and controller parameters.

Use SweetGold to download and verify registered artifacts:

python main.py models download
python main.py models verify