debug: add debug output to trace execution

artifact_comfyui_download.sh

@@ -407,6 +407,7 @@ link_model() {
     local model_type="$2"
     local filename_filter="$3"
 
+    echo "DEBUG: link_model called for $repo_id (type: $model_type, filter: $filename_filter)" >&2
     print_detail "Linking to: ${CYAN}${COMFYUI_DIR}/${model_type}/${RESET}"
 
     # Create ComfyUI subdirectory if it doesn't exist
@@ -417,8 +418,10 @@ link_model() {
     fi
 
     # Find model files in cache
+    echo "DEBUG: Calling find_model_files..." >&2
     local model_files
     model_files=$(find_model_files "$repo_id" "$filename_filter")
+    echo "DEBUG: find_model_files returned: $(echo \"$model_files\" | wc -l) files" >&2
 
     if [[ -z "$model_files" ]]; then
         print_warning "No model files found in cache for ${repo_id}"
@@ -480,13 +483,15 @@ process_category() {
     while IFS='|' read -r repo_id description size_gb essential model_type filename; do
         ((current++))
 
-        echo ""
+        echo ""  >&2
+        echo "DEBUG: Processing model $current/$total_models: $repo_id (type: $model_type)" >&2
         print_step "$current" "$total_models" "${BOLD_MAGENTA}${description}${RESET}"
 
         local success=true
 
         # Download if command is 'download' or 'both'
         if [[ "$COMMAND" == "download" ]] || [[ "$COMMAND" == "both" ]]; then
+            echo "DEBUG: Downloading $repo_id" >&2
             if ! download_model "$repo_id" "$description" "$size_gb"; then
                 success=false
             fi
@@ -495,6 +500,7 @@ process_category() {
         # Link if command is 'link' or 'both'
         if [[ "$COMMAND" == "link" ]] || [[ "$COMMAND" == "both" ]]; then
             if $success; then
+                echo "DEBUG: Linking $repo_id to $model_type" >&2
                 if ! link_model "$repo_id" "$model_type" "$filename"; then
                     success=false
                 fi