Simplify workflow to bare minimum

.github/workflows/build-iso.yml

@@ -1,4 +1,4 @@
-name: Verify AeThex-OS
+name: Build AeThex-OS
 
 on:
   push:
@@ -7,21 +7,18 @@ on:
   workflow_dispatch:
 
 jobs:
-  verify:
+  build:
     runs-on: ubuntu-latest
-    timeout-minutes: 5
     
     steps:
-      - name: Checkout code
-        uses: actions/checkout@v4
-
-      - name: Set up Node.js
-        uses: actions/setup-node@v4
+      - uses: actions/checkout@v4
+      
+      - uses: actions/setup-node@v4
         with:
           node-version: '22'
-
-      - name: Install dependencies
-        run: npm ci --legacy-peer-deps
-
-      - name: ✅ Code verified
-        run: echo "AeThex-OS repository verified"
+      
+      - run: npm install
+      
+      - run: npm run build
+      
+      - run: echo "✅ Build successful"