add build action config

.gitea/workflows/productive.yaml

@@ -0,0 +1,18 @@
+name: Production Build
+on:
+  push:
+    branches:
+      - productive
+
+jobs:
+  build:
+    runs-on: webserver
+    steps:
+      - name: Code auschecken
+        uses: actions/checkout@v4
+
+      - name: Abhängigkeiten installieren
+        run: npm install
+
+      - name: Production-Build generieren
+        run: npm run build

.gitea/workflows/staging.yaml

@@ -0,0 +1,18 @@
+name: Staging Build
+on:
+  push:
+    branches:
+      - staging
+
+jobs:
+  build:
+    runs-on: webserver
+    steps:
+      - name: Code auschecken
+        uses: actions/checkout@v4
+
+      - name: Abhängigkeiten installieren
+        run: npm install
+
+      - name: Staging-Build generieren
+        run: npm run build -- --configuration=staging