Update changes

backend/scripts/seed-skills-from-frontend.js

@@ -3,32 +3,43 @@
 
 const fs = require('fs')
 const path = require('path')
-const vm = require('vm')
 const Database = require('better-sqlite3')
 
-function parseFrontendHierarchy() {
+function loadHierarchy() {
+  const sharedPath = path.join(process.cwd(), '..', 'shared', 'skills.js')
+  if (fs.existsSync(sharedPath)) {
+    const sharedModule = require(sharedPath)
+    if (Array.isArray(sharedModule?.SKILL_HIERARCHY)) {
+      return sharedModule.SKILL_HIERARCHY
+    }
+    throw new Error('SKILL_HIERARCHY missing or invalid in shared/skills.js')
+  }
+
   const tsPath = path.join(process.cwd(), '..', 'frontend', 'src', 'data', 'skillCategories.ts')
+  if (!fs.existsSync(tsPath)) {
+    throw new Error('No skill hierarchy definition found in shared/skills.js or frontend/src/data/skillCategories.ts')
+  }
+
   const src = fs.readFileSync(tsPath, 'utf8')
-  // Remove interface declarations and LANGUAGE_LEVELS export, keep the array literal
   let code = src
     .replace(/export interface[\s\S]*?\n\}/g, '')
     .replace(/export const LANGUAGE_LEVELS[\s\S]*?\n\n/, '')
     .replace(/export const SKILL_HIERARCHY:[^=]*=/, 'module.exports =')
 
   const sandbox = { module: {}, exports: {} }
-  vm.createContext(sandbox)
-  vm.runInContext(code, sandbox)
-  return sandbox.module.exports || sandbox.exports
+  require('vm').runInNewContext(code, sandbox)
+  const hierarchy = sandbox.module?.exports || sandbox.exports
+  if (!Array.isArray(hierarchy)) {
+    throw new Error('Parsed hierarchy is not an array')
+  }
+  return hierarchy
 }
 
 function main() {
   const dbPath = path.join(process.cwd(), 'skillmate.dev.encrypted.db')
   const db = new Database(dbPath)
   try {
-    const hierarchy = parseFrontendHierarchy()
-    if (!Array.isArray(hierarchy)) {
-      throw new Error('Parsed hierarchy is not an array')
-    }
+    const hierarchy = loadHierarchy()
 
     const insert = db.prepare(`
       INSERT OR IGNORE INTO skills (id, name, category, description, expires_after)