feat(dev): add gitea actions runner

stacks/dev/docker-compose.yml

@@ -51,6 +51,25 @@ services:
       postgres_gitea:
         condition: service_healthy
 
+  gitea-runner:
+    container_name: gitea_runner
+    image: gitea/act_runner:latest
+    restart: unless-stopped
+    networks: [dev]
+    env_file:
+      - stack.env
+    environment:
+      - GITEA_INSTANCE_URL=https://gitea.ginnoir.com
+      - GITEA_RUNNER_REGISTRATION_TOKEN=${GITEA_RUNNER_REGISTRATION_TOKEN}
+      - GITEA_RUNNER_NAME=valhalla-dev-runner
+      - GITEA_RUNNER_LABELS=ubuntu-latest:docker://node:24-bookworm,node-24:docker://node:24-bookworm
+    volumes:
+      - /config/gitea/act_runner:/data
+      - /var/run/docker.sock:/var/run/docker.sock
+    depends_on:
+      gitea:
+        condition: service_started
+
   postgres_gitea:
     container_name: postgres_gitea
     image: postgres:16-alpine