Add folder-based service account onboarding

lib/config.js

@@ -128,6 +128,15 @@ function loadConfig() {
   return config;
 }
 
+function getConfigBaseDir(config) {
+  const configPath = config && (config.__configPath || config.configPath);
+  if (configPath) {
+    return path.dirname(configPath);
+  }
+
+  return process.cwd();
+}
+
 function resolveOutputPath(outputDir, filename) {
   if (!path.isAbsolute(outputDir)) {
     outputDir = path.resolve(process.cwd(), outputDir);
@@ -203,6 +212,8 @@ function validateConfig(config) {
 
   // Ensure service account credential paths are unique when using serviceAccounts
   if (hasSvcAccounts) {
+    const baseDir = getConfigBaseDir(config);
+
     for (const item of config.serviceAccounts) {
       if (typeof item === 'string') {
         if (!item.trim()) {
@@ -231,7 +242,7 @@ function validateConfig(config) {
       if (typeof item === 'string') p = item.trim();
       else if (item && typeof item === 'object') p = (item.path || item.file || item.credentialsPath || '').toString().trim();
       if (!p) return '';
-      const full = path.isAbsolute(p) ? p : path.resolve(process.cwd(), p);
+      const full = path.isAbsolute(p) ? p : path.resolve(baseDir, p);
       if (!fs.existsSync(full)) {
         throw new Error(`Service account file not found: ${p}`);
       }