Enable HSA_OVERRIDE_GFX_VERSION for RX 6700 XT (gfx1031) ROCm compatibility

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

docker-compose.yml

@@ -23,8 +23,8 @@ services:
 
     environment:
       - HIP_VISIBLE_DEVICES=0
-      # Uncomment if ROCm does not recognise the 6700 XT automatically:
-      # - HSA_OVERRIDE_GFX_VERSION=10.3.0
+      # gfx1031 (6700 XT) is not in the ROCm wheel's compiled arch list; override to gfx1030
+      - HSA_OVERRIDE_GFX_VERSION=10.3.0
 
     healthcheck:
       test: