Add Dockerfile and update docker-compose.yml for local runner configuration

Dockerfile

@@ -0,0 +1,13 @@
+FROM gitea/act_runner:latest
+
+USER root
+
+# Docker CLI – behövs för shell-jobb som kör docker-kommandon direkt
+# openssh-client – behövs för deployment-scripts via SSH
+# curl – allmänt användbart i workflow-steg
+RUN apt-get update && \
+    apt-get install -y --no-install-recommends \
+        curl \
+        docker.io \
+        openssh-client \
+    && rm -rf /var/lib/apt/lists/*

docker-compose.yml

@@ -1,6 +1,9 @@
 services:
   gitea-runner:
-    image: gitea/act_runner:latest
+    build:
+      context: .
+      dockerfile: Dockerfile
+    image: gitea-act-runner:local
     container_name: gitea-runner
     restart: unless-stopped
     environment:
@@ -9,6 +12,20 @@ services:
       GITEA_RUNNER_NAME: ${GITEA_RUNNER_NAME:-recipe-app}
       GITEA_RUNNER_LABELS: ${GITEA_RUNNER_LABELS:-backend-node24:docker://node:24-bullseye,flutter-3-41:docker://ghcr.io/cirruslabs/flutter:stable}
     volumes:
-      - ./data:/data
+      - runner-data:/data
       - /var/run/docker.sock:/var/run/docker.sock
-    restart: always
+    healthcheck:
+      test: ["CMD-SHELL", "pgrep -x act_runner > /dev/null || exit 1"]
+      interval: 30s
+      timeout: 10s
+      retries: 3
+      start_period: 20s
+    networks:
+      - runner-network
+
+volumes:
+  runner-data:
+
+networks:
+  runner-network:
+    driver: bridge