Row: `GFX1100-TG200`
Lever-C adds an opt-in fused norm-quant epilogue (`VT_NORM_QUANT_FUSED=1`): `RmsNormRowKernel` emits the row's Q8_K blocks alongside its normal output, and `MatmulBTQuant`'s K-quant branch skips the standalone `QuantizeQ8KK` when the consuming activation matches the producer token. Byte-identical to the standalone path by construction (shared `QuantQ8KSBlock` body).
New files: `rocm_act_quant.h` (shared Q8_K quant-block body), `rocm_norm_quant_bridge.h` (producer-consumer token contract).
Depends on #2782 (F1) and #2790 (T4a).
Row: `GFX1100-TG200`
Lever-C adds an opt-in fused norm-quant epilogue (`VT_NORM_QUANT_FUSED=1`): `RmsNormRowKernel` emits the row's Q8_K blocks alongside its normal output, and `MatmulBTQuant`'s K-quant branch skips the standalone `QuantizeQ8KK` when the consuming activation matches the producer token. Byte-identical to the standalone path by construction (shared `QuantQ8KSBlock` body).
New files: `rocm_act_quant.h` (shared Q8_K quant-block body), `rocm_norm_quant_bridge.h` (producer-consumer token contract).
Depends on #2782 (F1) and #2790 (T4a).