Document canonical Caddy migration

tests/frank_large_config.bats

@@ -70,7 +70,7 @@ TEMPLATE_FILE="$REPO_ROOT/scripts/chat-template.jinja"
     grep -q 'Qwen3\.8-27B-Uncensored-Q6_0_ROCMFPX_AGENT\.gguf' "$bench"
     grep -q -- '--n-prompt "$CONTEXT"' "$bench"
     grep -q -- '--ubatch-size "$UBATCH_VALUES"' "$bench"
-    grep -q -- '--batch-size "$CONTEXT"' "$bench"
+    grep -q -- '--batch-size "$UBATCH_VALUES"' "$bench"
     grep -q -- '--mmap 0' "$bench"
     ! grep -qE '(^|[[:space:]])llama-server|(^|[[:space:]])curl|print_timing' "$bench"
 }