test_max_shared_memory_kb_h100: was calling driver query path which
returns actual GPU's shared memory (100KB on RTX 3050, not 228KB).
Changed to test name-based heuristic directly via max_shared_memory_kb_by_name().
Added test_max_shared_memory_kb_queries_real_device with range assertion
(48-256 KB) for device-agnostic driver query test.
ml-core: 301 pass, 0 fail.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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