fix(agents): accept exact remote KV hits in gate

[FluffyAIcode]

Summary

• accept strict complete allens KV hits whether sourced from an existing snapshot or a new remote Prefill job
• require reused tokens, zero local computation, zero fallbacks, and zero remote job failures
• retain the Primary local-hit requirement for the actual inference pass
• add regression coverage for both remote-compute and exact remote-cache warmups

Root cause

Deterministic prompts introduced in PR #183 correctly enabled exact allens cache hits. The old benchmark gate still required remote_jobs >= 1, so it rejected the superior remote_hits=1, remote_jobs=0 path after successful Generator output.

Observed failing turn counters were remote_hits=1, local_hits=1, tokens_computed=0, and fallbacks=0; inference and KV reuse were correct.

Tests

• targeted Agent GAN gate suite — 13 passed
• full platform-neutral suite — 859 passed, 1 skipped
• diff checks pass

Made with Cursor

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