fix: replace all heredocs with printf for YAML compatibility

Author: Auto-Co AI

action.yml

@@ -402,77 +402,48 @@ runs:
 
           DESCRIPTION=$(cat /tmp/template_work.txt)
         elif [ "$STYLE" = "minimal" ]; then
-          DESCRIPTION=$(cat <<DESC_EOF
-## Summary
-
-$SUMMARY
-
-### Files Changed
-
-$(cat /tmp/pr_files.txt 2>/dev/null || echo "None")
-
----
-
-###### 🤖 Generated by [DocuCraft](https://github.com/${{ github.repository }})
-DESC_EOF
-)
+          {
+            printf '## Summary\n\n'
+            printf '%s\n\n' "$SUMMARY"
+            printf '### Files Changed\n\n'
+            cat /tmp/pr_files.txt 2>/dev/null || echo "None"
+            printf '\n---\n\n'
+            printf '###### 🤖 Generated by [DocuCraft](https://github.com/%s)\n' "${{ github.repository }}"
+          } > /tmp/docucraft_desc.txt
+          DESCRIPTION=$(cat /tmp/docucraft_desc.txt)
         elif [ "$STYLE" = "summary-only" ]; then
-          DESCRIPTION=$(cat <<DESC_EOF
-## Summary
-
-$SUMMARY
-
----
-
-###### 🤖 Generated by [DocuCraft](https://github.com/${{ github.repository }})
-DESC_EOF
-)
+          {
+            printf '## Summary\n\n'
+            printf '%s\n\n' "$SUMMARY"
+            printf '\n---\n\n'
+            printf '###### 🤖 Generated by [DocuCraft](https://github.com/%s)\n' "${{ github.repository }}"
+          } > /tmp/docucraft_desc.txt
+          DESCRIPTION=$(cat /tmp/docucraft_desc.txt)
         elif [ "$STYLE" = "detailed" ]; then
           DIFF_PREVIEW=""
           if [ -f /tmp/pr_diff.txt ]; then
             DIFF_PREVIEW=$(head -c 3000 /tmp/pr_diff.txt)
           fi
-          DESCRIPTION=$(cat <<DESC_EOF
-## Summary
-
-$SUMMARY
-
-### Changes by Category
-$CHANGES_SECTION
-
-### Diff Preview
-
-\`\`\`diff
-$DIFF_PREVIEW
-\`\`\`
-
-### Why
-
-Automated pull request description generated by DocuCraft. See diff preview above for detailed changes.
-
----
-
-###### 🤖 Generated by [DocuCraft](https://github.com/${{ github.repository }})
-DESC_EOF
-)
+          {
+            printf '## Summary\n\n'
+            printf '%s\n\n' "$SUMMARY"
+            printf '### Changes by Category\n'
+            printf '%s\n\n' "$CHANGES_SECTION"
+            printf '### Diff Preview\n\n```diff\n%s\n```\n\n' "$DIFF_PREVIEW"
+            printf '### Why\n\nAutomated pull request description generated by DocuCraft. See diff preview above for detailed changes.\n\n---\n\n'
+            printf '###### 🤖 Generated by [DocuCraft](https://github.com/%s)\n' "${{ github.repository }}"
+          } > /tmp/docucraft_desc.txt
+          DESCRIPTION=$(cat /tmp/docucraft_desc.txt)
         else
-          DESCRIPTION=$(cat <<DESC_EOF
-## Summary
-
-$SUMMARY
-
-### Changes by Category
-$CHANGES_SECTION
-
-### Why
-
-Automated pull request description generated by DocuCraft. Review the diff for detailed changes.
-
----
-
-###### 🤖 Generated by [DocuCraft](https://github.com/${{ github.repository }})
-DESC_EOF
-)
+          {
+            printf '## Summary\n\n'
+            printf '%s\n\n' "$SUMMARY"
+            printf '### Changes by Category\n'
+            printf '%s\n\n' "$CHANGES_SECTION"
+            printf '### Why\n\nAutomated pull request description generated by DocuCraft. Review the diff for detailed changes.\n\n---\n\n'
+            printf '###### 🤖 Generated by [DocuCraft](https://github.com/%s)\n' "${{ github.repository }}"
+          } > /tmp/docucraft_desc.txt
+          DESCRIPTION=$(cat /tmp/docucraft_desc.txt)
         fi
 
         echo "description<<EOF" >> $GITHUB_OUTPUT
@@ -490,25 +461,14 @@ DESC_EOF
         FILES_LIST=$(cat /tmp/pr_files.txt 2>/dev/null || echo "No files detected")
         DIFF=$(cat /tmp/pr_diff.txt 2>/dev/null || echo "No diff available")
 
-        PROMPT=$(cat <<PROMPT_EOF
-You are DocuCraft, an expert code reviewer. Given this pull request, write a clear and concise PR description.
-
-PR Title: $PR_TITLE
-
-Files Changed:
-$FILES_LIST
-
-Diff (truncated):
-\`\`\`diff
-${DIFF:0:8000}
-\`\`\`
-
-Generate a PR description with markdown:
-1. **Summary**: 1-2 sentence overview
-2. **Changes**: Key changes organized by area
-3. **Why**: Motivation behind the changes
-PROMPT_EOF
-)
+        {
+          printf 'You are DocuCraft, an expert code reviewer. Given this pull request, write a clear and concise PR description.\n\n'
+          printf 'PR Title: %s\n\n' "$PR_TITLE"
+          printf 'Files Changed:\n%s\n\n' "$FILES_LIST"
+          printf 'Diff (truncated):\n```diff\n%s\n```\n\n' "${DIFF:0:8000}"
+          printf 'Generate a PR description with markdown:\n1. **Summary**: 1-2 sentence overview\n2. **Changes**: Key changes organized by area\n3. **Why**: Motivation behind the changes\n'
+        } > /tmp/docucraft_prompt.txt
+        PROMPT=$(cat /tmp/docucraft_prompt.txt)
         JSON_ESCAPED=$(echo "$PROMPT" | jq -Rs .)
         RESPONSE=$(curl -s https://api.openai.com/v1/chat/completions \
           -H "Authorization: Bearer $OPENAI_API_KEY" \
@@ -535,20 +495,16 @@ PROMPT_EOF
           PR_LABELS=$(gh pr view "$PR_NUMBER" --json labels --jq '[.labels[].name] | join(", ")' 2>/dev/null || echo "")
           MERGE_COMMIT="${{ github.event.pull_request.merge_commit_sha }}"
 
-          CHANGELOG=$(cat <<CHLOG_EOF
-### [#$PR_NUMBER] - $DATE
-$PR_TITLE
-
-**Labels:** ${PR_LABELS:-none}
-
-**Merge Commit:** $MERGE_COMMIT
-
-**Files:**
-$(cat /tmp/pr_files.txt 2>/dev/null | sed 's/^/- /')
-
----
-CHLOG_EOF
-)
+          {
+            printf '### [#%s] - %s\n' "$PR_NUMBER" "$DATE"
+            printf '%s\n\n' "$PR_TITLE"
+            printf '**Labels:** %s\n\n' "${PR_LABELS:-none}"
+            printf '**Merge Commit:** %s\n\n' "$MERGE_COMMIT"
+            printf '**Files:**\n'
+            cat /tmp/pr_files.txt 2>/dev/null | sed 's/^/- /'
+            printf '\n---\n'
+          } > /tmp/docucraft_changelog.txt
+          CHANGELOG=$(cat /tmp/docucraft_changelog.txt)
           echo "changelog_entry<<EOF" >> $GITHUB_OUTPUT
           echo "$CHANGELOG" >> $GITHUB_OUTPUT
           echo "EOF" >> $GITHUB_OUTPUT