ci: add woodpecker pipeline, Dockerfile and deploy configs

Mirrors the oneos- project layout: multi-stage node:22 → nginx:alpine
build, Woodpecker pipeline that tags images as <branch>-<pkg-version>
and pushes to harbor.lnh2e.com/lingniu-v1/bi, and a swarm-style
docker-compose for deployment.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

docker-compose.yml

@@ -0,0 +1,16 @@
+version: '3.8'
+
+services:
+  bi:
+    image: harbor.lnh2e.com/lingniu-v1/bi:main-0.0.0
+    ports:
+      - "8114:80"
+    deploy:
+      replicas: 1
+      restart_policy:
+        condition: on-failure
+      placement:
+        constraints: [node.role == manager]
+      labels:
+        - portainer.hide=false
+        - project=lingniu