🔧 Fix GitHub Actions CI/CD pipeline and improve project structure

- Split CI workflow into separate backend and admin testing jobs
- Fix package-lock.json caching issues with proper cache paths
- Update Docker configuration for better CI/CD integration
- Improve root package.json with comprehensive npm scripts
- Add proper build and test scripts for all components
- Fix Dockerfile to work correctly with GitHub Actions
- Add Docker BuildKit support for faster builds
- Organize project structure with deployment folder

This fixes the GitHub Actions error about missing package-lock.json
and improves the overall CI/CD pipeline for the project.

.github/workflows/ci.yml

@@ -7,7 +7,7 @@ on:
     branches: [ main ]
 
 jobs:
-  test:
+  test-backend:
     runs-on: ubuntu-latest
     
     strategy:
@@ -18,39 +18,62 @@ jobs:
     - name: Checkout code
       uses: actions/checkout@v4
     
-    - name: Setup Node.js ${{ matrix.node-version }}
+    - name: Setup Node.js ${{ matrix.node-version }} for Backend
       uses: actions/setup-node@v4
       with:
         node-version: ${{ matrix.node-version }}
         cache: 'npm'
+        cache-dependency-path: backend/package-lock.json
     
-    - name: Install dependencies
+    - name: Install backend dependencies
       run: |
-        npm run setup:backend
-        npm run setup:admin
+        cd backend
+        npm ci
     
-    - name: Run system tests
+    - name: Run backend tests
       run: |
         cd backend
         npm start &
         sleep 5
         cd ..
         node test_system.js
-        pkill -f "node server.js"
+        pkill -f "node server.js" || true
     
-    - name: Run linting (if configured)
-      run: |
-        echo "Linting not configured yet"
-    
-    - name: Security audit
+    - name: Security audit backend
       run: |
         cd backend
         npm audit --audit-level=high
-        cd ../admin
+
+  test-admin:
+    runs-on: ubuntu-latest
+    
+    strategy:
+      matrix:
+        node-version: [18.x, 20.x]
+    
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v4
+    
+    - name: Setup Node.js ${{ matrix.node-version }} for Admin
+      uses: actions/setup-node@v4
+      with:
+        node-version: ${{ matrix.node-version }}
+        cache: 'npm'
+        cache-dependency-path: admin/package-lock.json
+    
+    - name: Install admin dependencies
+      run: |
+        cd admin
+        npm ci
+    
+    - name: Security audit admin
+      run: |
+        cd admin
         npm audit --audit-level=high
 
   build:
-    needs: test
+    needs: [test-backend, test-admin]
     runs-on: ubuntu-latest
     
     steps:
@@ -61,23 +84,25 @@ jobs:
       uses: actions/setup-node@v4
       with:
         node-version: '18'
-        cache: 'npm'
     
-    - name: Install dependencies
+    - name: Install all dependencies
       run: npm run setup
     
     - name: Build project
       run: npm run build
     
-    - name: Upload artifacts
+    - name: Upload build artifacts
       uses: actions/upload-artifact@v4
       with:
-        name: build-files
+        name: project-files
         path: |
           backend/
           admin/
           client/
           docs/
+          deployment/
+          package.json
+          README.md
           !backend/node_modules/
           !admin/node_modules/
 
@@ -103,9 +128,12 @@ jobs:
       uses: docker/build-push-action@v5
       with:
         context: .
+        file: ./deployment/docker/Dockerfile
         push: true
         tags: |
           snowworld/narrowcasting:latest
           snowworld/narrowcasting:${{ github.sha }}
         cache-from: type=gha
-        cache-to: type=gha,mode=max
+        cache-to: type=gha,mode=max
+      env:
+        DOCKER_BUILDKIT: 1