Update blog list and fix makim.yaml

Author: xmnlab

.makim.yaml

@@ -23,7 +23,8 @@ groups:
             find "$SEARCH_DIR" -name "*.qmd" -exec sh -c \
               'dir=$(dirname "$0"); base=$(basename "$0" .qmd); (cd "$dir" && quarto render "$base.qmd" --to gfm)' {} \;
           else
-            echo "[WW] Quarto is not available on PATH; .qmd files will not be rendered."
+            echo "[EE] Quarto is not available on PATH; .qmd files will not be rendered."
+            exit 1
           fi
 
           # 3) Remove console colors from generated md files

theme/blog-list.html

@@ -4,7 +4,7 @@
 {% macro render_blog(title, description, time, url, page) -%}
 {% if title != "Blog" %}
   {# Thumbnail path (fallback if missing) #}
-  {% set thumb = '/images/placeholders/post-16x9.png' %}
+  {% set thumb = 'https://fastly.picsum.photos/id/866/600/300.jpg?hmac=Zlb4VEJZKg8E6U7UZGt9Mq8Ly0cZsb8ZloMpw_5WB2M' %}
   {% if page.meta and page.meta.slug and page.meta.thumbnail %}
     {% set thumb = '/blog/' ~ page.meta.slug ~ page.meta.thumbnail %}
   {% endif %}