- Scale model_memory_mb by activation_multiplier in resolve_batch_size()
so TFT (2.5x) gets proportionally smaller batches than DQN (1.0x)
- Add cached_capabilities() with OnceLock to avoid spawning nvidia-smi
on every call to CampaignConfig::dqn_default/ppo_default/PpoTrainer::new
- Add PartialEq to GpuCapabilities and simplify serde roundtrip test
- Update stale "RTX 3050 Ti" and "Exceeds GPU limit (230)" comments
to reflect dynamic detection
- Document Auto variant silent CPU fallback behavior (no callers affected)
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
