feat(config): add tool integrations and refine settings

dot_config/fish/functions/gh-wiki.fish

@@ -49,7 +49,7 @@ function gh-wiki --description "Clone a GitHub wiki and build one PDF from its M
     set -q _flag_output; and set out $_flag_output
 
     # --- Clone ----------------------------------------------------------
-    gum spin --spinner dot --title "Cloning $url" -- \
+    gum spin --show-error --spinner dot --title "Cloning $url" -- \
         git clone --quiet --depth 1 $url $clone_dir
     or begin
         gum log --level error "Clone failed: $url"
@@ -94,7 +94,6 @@ function gh-wiki --description "Clone a GitHub wiki and build one PDF from its M
         --shift-heading-level-by=1 \
         --toc --toc-depth=2 \
         --number-sections \
-        --syntax-highlighting idiomatic \
         -M title="$repo Wiki" \
         -M date=(date +%Y-%m-%d) \
         -V titlepage=true \
@@ -106,7 +105,7 @@ function gh-wiki --description "Clone a GitHub wiki and build one PDF from its M
         # pandoc/extra ships pandoc, LaTeX and Eisvogel. Mount the clone as
         # /data, write the PDF there, then move it to the requested path.
         set -l tmp_pdf _out.pdf
-        gum spin --spinner line --title "Rendering $out" -- \
+        gum spin --show-error --spinner line --title "Rendering $out" -- \
             docker run --rm \
             --volume "$clone_dir:/data" \
             --user (id -u):(id -g) \
@@ -128,7 +127,7 @@ function gh-wiki --description "Clone a GitHub wiki and build one PDF from its M
         else
             gum log --level warn "Template '$template' not found; using the pandoc default"
         end
-        gum spin --spinner line --title "Rendering $out" -- \
+        gum spin --show-error --spinner line --title "Rendering $out" -- \
             pandoc $src -o $out \
             --resource-path $clone_dir \
             $pandoc_args \