feat(cicd): add Gitea CI workflow for feature branches and PRs

Host mode lacks Node.js so actions/checkout@v4 fails. Switch label to
ubuntu-latest:docker:node:20 which has Node.js for JS actions. Install
Docker CLI in the deploy job since node:20 doesn't include it.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.gitea/workflows/ci.yaml

@@ -0,0 +1,20 @@
+name: ci
+
+on:
+  push:
+    branches-ignore: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-go@v5
+        with:
+          go-version-file: go.mod
+
+      - name: Run tests
+        run: go test ./...

.gitea/workflows/deploy.yaml

@@ -23,6 +23,9 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
+      - name: Install Docker CLI
+        run: apt-get update -qq && apt-get install -y -qq docker.io
+
       - name: Login to Gitea registry
         run: |
           echo "${{ secrets.REGISTRY_PASSWORD }}" \

infrastructure/terraform/act-runner.tf

@@ -100,13 +100,18 @@ resource "kubernetes_deployment" "act_runner" {
           command = ["/bin/sh", "-c"]
           args = [<<-EOT
             set -e
+            echo "Waiting for Docker daemon..."
+            until docker -H tcp://localhost:2375 info > /dev/null 2>&1; do
+              sleep 2
+            done
+            echo "Docker daemon ready."
             if [ ! -f /data/.runner ]; then
               act_runner register \
                 --no-interactive \
                 --instance http://gitea-http.gitea.svc.cluster.local:3000 \
                 --token "$(cat /etc/runner-token/token)" \
                 --name "k3d-runner-$(hostname)" \
-                --labels ubuntu-latest
+                --labels ubuntu-latest:docker:node:20
             fi
             exec act_runner daemon --config /etc/act-runner/config.yaml
           EOT