Add Nomad job and Gitea deploy workflow

Deploy kreuzberg as 'fil' service on fil.i80.dk via Nomad.
Uses upstream ghcr.io/kreuzberg-dev/kreuzberg:latest image.

.gitea/workflows/deploy.yml

@@ -0,0 +1,40 @@
+name: Deploy fil (kreuzberg)
+
+on:
+  push:
+    branches:
+      - main
+  workflow_dispatch:
+
+env:
+  SERVICE_NAME: fil
+
+jobs:
+  deploy:
+    runs-on: debian-host
+
+    env:
+      PATH: /usr/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/sbin:/bin:/snap/bin
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Validate Nomad job
+        run: nomad job validate kreuzberg.nomad
+        env:
+          NOMAD_ADDR: "https://nomad.i80.dk:4646"
+
+      - name: Deploy to Nomad
+        run: nomad job run kreuzberg.nomad
+        env:
+          NOMAD_ADDR: "https://nomad.i80.dk:4646"
+
+      - name: Check deployment status
+        run: |
+          echo "=== Job status ==="
+          nomad job status ${SERVICE_NAME}
+          echo "=== Allocations ==="
+          nomad job allocs ${SERVICE_NAME}
+        env:
+          NOMAD_ADDR: "https://nomad.i80.dk:4646"