fix: restore npm ci and prisma generate in build-and-deploy-ci

Acceptance tests import prisma via @/ path alias and @cucumber/cucumber,
so they need node_modules and Prisma client. Cannot remove these steps
without refactoring tests to not import local code.

.gitea/workflows/pr.yml

@@ -44,6 +44,16 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@v4
 
+      # Required for acceptance tests - they import prisma via @/ path alias
+      # and @cucumber/cucumber for cucumber-e2e tests
+      - name: Install dependencies
+        run: npm ci --legacy-peer-deps
+
+      - name: Generate Prisma client
+        run: npx prisma generate
+        env:
+          DATABASE_URL: postgresql://user:pass@localhost:5432/dummy
+
       - name: Extract PR number and commit info
         id: info
         run: |