Add CI/CD pipeline for Blazor WASM build & deploy

.forgejo/workflows/build.yml

@@ -0,0 +1,44 @@
+name: Build & Test
+
+on:
+  push:
+    branches: [main, develop]
+  pull_request:
+    branches: [main]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    container: mcr.microsoft.com/dotnet/sdk:10.0
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Restore dependencies
+        run: dotnet restore
+
+      - name: Build
+        run: dotnet build --no-restore --configuration Release
+
+      - name: Test
+        run: dotnet test --no-build --configuration Release --verbosity normal
+
+  publish:
+    needs: build
+    if: github.ref == 'refs/heads/main'
+    runs-on: ubuntu-latest
+    container: mcr.microsoft.com/dotnet/sdk:10.0
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Publish Blazor WASM
+        run: dotnet publish -c Release -o /tmp/publish
+
+      - name: Deploy to hosting
+        run: |
+          echo "Deploying StellarisIdle Blazor WASM to /srv/web/stellaris.holoshaii.dev/"
+          mkdir -p /srv/web/stellaris.holoshaii.dev
+          cp -r /tmp/publish/wwwroot/* /srv/web/stellaris.holoshaii.dev/
+        # Only works if runner runs on same host as web server
+        # For remote deploy, use rsync/scp instead