Qualify standalone Spark text on Windows CPU and Radeon 890M

docs/design/omni_edge_backends.md

@@ -51,7 +51,7 @@ memory-accounting and unavailable-device gaps remain documented repair items.
 
 ### Mobile and PC × model support matrix
 
-This section preserves the 2026-09-22 audit. For the latest per-cell disposition and 2026-09-23 follow-up evidence, use the [current 60-cell E2E matrix](../../benchmarks/edge_harness/results/e2e_profiling_20260922/evidence/summary/README.md). In particular, the HX370 AMD NPU now has a placement- and quality-verified **Spark 1.7B output-head component** through Omni, while complete Spark generation on that route remains unverified; see the [component record](../../benchmarks/edge_harness/results/e2e_expansion_20260923/evidence/spark_amd_npu_output_head/README.md). This advances the M3 component gate, not its whole-model or same-device handoff gate.
+This section preserves the 2026-09-22 audit. For the latest per-cell disposition and 2026-09-23 follow-up evidence, use the [current 60-cell E2E matrix](../../benchmarks/edge_harness/results/e2e_profiling_20260922/evidence/summary/README.md). The HX370 AMD NPU now has a placement- and quality-verified **Spark 1.7B output-head component** through Omni, while complete Spark generation on that route remains unverified; see the [component record](../../benchmarks/edge_harness/results/e2e_expansion_20260923/evidence/spark_amd_npu_output_head/README.md). Native Windows CPU and Radeon 890M also completed [scoped whole-model Spark text requests](../../benchmarks/edge_harness/results/e2e_expansion_20260923/evidence/spark_radeon890m_llamacpp/README.md) with the same Q4_K_M GGUF in standalone llama.cpp. An Omni stage binding, explicit admission and broader quality gates remain open. These results advance the M3 hardware/backend evidence without claiming a joint multi-accelerator plan.
 
 **All 60 named pairings were checked on 2026-09-22** through actual runs,
 raw-record review or artifact/runtime preflight. This is not 60 successful