ci: auto-sync package.json description from README on every push to main

Author: jpr5

.github/workflows/publish-release.yml

@@ -33,6 +33,33 @@ jobs:
             echo "published=false" >> "$GITHUB_OUTPUT"
           fi
 
+      - name: Sync package.json description from README
+        run: |
+          DESC=$(node -e "
+            const fs = require('fs');
+            const lines = fs.readFileSync('README.md','utf-8').split('\n');
+            for (const line of lines) {
+              const t = line.trim();
+              if (!t || t.startsWith('#') || t.startsWith('[') || t.startsWith('http') || t.startsWith('![')) continue;
+              console.log(t.replace(/[*_\`]/g,'').replace(/\s+/g,' ').trim());
+              break;
+            }
+          ")
+          PKG_DESC=$(node -p "require('./package.json').description")
+          if [ "$DESC" != "$PKG_DESC" ]; then
+            node -e "
+              const fs = require('fs');
+              const pkg = JSON.parse(fs.readFileSync('package.json','utf-8'));
+              pkg.description = process.argv[1];
+              fs.writeFileSync('package.json', JSON.stringify(pkg, null, 2) + '\n');
+            " "$DESC"
+            git config user.name "github-actions[bot]"
+            git config user.email "github-actions[bot]@users.noreply.github.com"
+            git add package.json
+            git commit -m "chore: sync package.json description from README"
+            git push
+          fi
+
       - name: Build and publish
         if: steps.check.outputs.published == 'false'
         run: pnpm build && npm publish --access public