follow stab55_12, 1. release sealed setup allocator cache before steady solve; 2. enable c128 16x32x32x48 full-double dual-side smoke; 3. record PyQCU 2.06395 s vs QUDA 17.35793 s with passing true residuals and explicit smoke-only status; 4. preserve formal C=1 limitation and BiCGStab distortion context. [opencode].