feat(setup): add gitea actions CI/CD workflows

.gitea/workflows/build.yml

@@ -0,0 +1,59 @@
+name: Build
+
+on:
+  push:
+    branches:
+      - main
+      - develop
+  pull_request:
+    branches:
+      - main
+      - develop
+  workflow_dispatch:
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  build:
+    name: Build Project
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+          cache: 'yarn'
+
+      - name: Install dependencies
+        run: yarn install --frozen-lockfile
+
+      - name: Run SvelteKit sync
+        run: yarn svelte-kit sync
+
+      - name: Build project
+        run: yarn build
+        env:
+          NODE_ENV: production
+
+      - name: Upload build artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          name: build-artifacts
+          path: |
+            .svelte-kit/output
+            .svelte-kit/build
+          retention-days: 7
+
+      - name: Verify build (Preview)
+        run: |
+          yarn preview &
+          PREVIEW_PID=$!
+          sleep 5
+          curl -f http://localhost:4173 || exit 1
+          kill $PREVIEW_PID