fix pnpm

Author: kenerwin88

.github/workflows/ci.yml

@@ -14,7 +14,28 @@ jobs:
         uses: actions/setup-node@v3
         with:
           node-version: 18
-          cache: "npm"
+
+      # Setup pnpm
+      - name: Setup pnpm
+        uses: pnpm/action-setup@v2
+        with:
+          version: 8
+          run_install: false
+
+      # Get pnpm store directory
+      - name: Get pnpm store directory
+        shell: bash
+        run: |
+          echo "STORE_PATH=$(pnpm store path --silent)" >> $GITHUB_ENV
+
+      # Setup pnpm cache
+      - uses: actions/cache@v3
+        name: Setup pnpm cache
+        with:
+          path: ${{ env.STORE_PATH }}
+          key: ${{ runner.os }}-pnpm-store-${{ hashFiles('**/pnpm-lock.yaml') }}
+          restore-keys: |
+            ${{ runner.os }}-pnpm-store-
 
       # Setup Go for backend tests
       - name: Setup Go
@@ -24,7 +45,7 @@ jobs:
 
       # Install dependencies
       - name: Install dependencies
-        run: npm ci && cd frontend && npm ci && cd ..
+        run: pnpm install --frozen-lockfile
 
       # Run tests with coverage
       - name: Run tests with coverage