[CI] Include workflow templates at build time (#2775)

scripts/fetch-templates.ts

@@ -0,0 +1,24 @@
+import fs from 'fs-extra'
+import { execSync } from 'node:child_process'
+import path from 'node:path'
+
+const workflowTemplatesRepo = 'https://github.com/Comfy-Org/workflow_templates'
+const tempRepoDir = './templates_repo'
+
+// Clone the repository
+execSync(`git clone ${workflowTemplatesRepo} --depth 1 ${tempRepoDir}`)
+
+// Create public/templates directory if it doesn't exist
+fs.ensureDirSync('public/templates')
+
+// Copy templates from repo to public/templates
+const sourceDir = path.join(tempRepoDir, 'templates')
+const targetDir = 'public/templates'
+
+// Copy entire directory at once
+fs.copySync(sourceDir, targetDir)
+
+// Remove the temporary repository directory
+fs.removeSync(tempRepoDir)
+
+console.log('Templates fetched successfully')