The original eviction logic blocked ASR eviction even when an LLM genuinely needed all 16GB VRAM (e.g., gpt-oss-20b at 13GB). Now uses two-pass eviction: first evicts lower/same priority, then cascades to higher priority as last resort. Added tests for ASR-survives and full-cascade scenarios. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>