[SaladDay]

Every openai_hosted Environment now starts initialization pending, so the Worker claims and completes it and journals agent.session.environment.pending and ready once, including when there are no files or setup. self_hosted keeps its rule.

An empty initialization sends no Runtime operation and uses no preparation cache. It adds the Harness availability check and two short transactions (claim and complete) per Session, and the first Turn waits for completion, up to one scan tick (250 ms) after the Runtime connects.

The ledger records that connected usually precedes pending and ready; the Environment contract states when each event is emitted.

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