feat: store jqschema.sh as a file in the skill folder

Instead of generating jqschema.sh inline via a heredoc, the skill now
stores jqschema.sh as a real file at .github/skills/jqschema/jqschema.sh
and the setup step copies it to /tmp/gh-aw/jqschema.sh at runtime.

Co-authored-by: pelikhan <4175913+pelikhan@users.noreply.github.com>

.github/skills/jqschema/SKILL.md

@@ -10,22 +10,7 @@ steps:
   - name: Setup jq utilities directory
     run: |
       mkdir -p /tmp/gh-aw
-      cat > /tmp/gh-aw/jqschema.sh << 'EOF'
-      #!/usr/bin/env bash
-      # jqschema.sh
-      jq -c '
-      def walk(f):
-        . as $in |
-        if type == "object" then
-          reduce keys[] as $k ({}; . + {($k): ($in[$k] | walk(f))})
-        elif type == "array" then
-          if length == 0 then [] else [.[0] | walk(f)] end
-        else
-          type
-        end;
-      walk(.)
-      '
-      EOF
+      cp "$GITHUB_WORKSPACE/.github/skills/jqschema/jqschema.sh" /tmp/gh-aw/jqschema.sh
       chmod +x /tmp/gh-aw/jqschema.sh
 ---
 

.github/skills/jqschema/jqschema.sh

@@ -0,0 +1,14 @@
+#!/usr/bin/env bash
+# jqschema.sh
+jq -c '
+def walk(f):
+  . as $in |
+  if type == "object" then
+    reduce keys[] as $k ({}; . + {($k): ($in[$k] | walk(f))})
+  elif type == "array" then
+    if length == 0 then [] else [.[0] | walk(f)] end
+  else
+    type
+  end;
+walk(.)
+'