ci: add backend lint+build workflow for center and guild

.github/workflows/backend-ci.yml

@@ -0,0 +1,46 @@
+name: backend-ci
+
+on:
+  push:
+    branches: ["main"]
+    paths:
+      - "Fabric.Backend.Center/**"
+      - "Fabric.Backend.Guild/**"
+      - ".github/workflows/backend-ci.yml"
+  pull_request:
+    paths:
+      - "Fabric.Backend.Center/**"
+      - "Fabric.Backend.Guild/**"
+      - ".github/workflows/backend-ci.yml"
+
+jobs:
+  verify:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        service:
+          - Fabric.Backend.Center
+          - Fabric.Backend.Guild
+    defaults:
+      run:
+        working-directory: ${{ matrix.service }}
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Node
+        uses: actions/setup-node@v4
+        with:
+          node-version: 22
+          cache: npm
+          cache-dependency-path: ${{ matrix.service }}/package-lock.json
+
+      - name: Install
+        run: npm ci
+
+      - name: Lint
+        run: npm run lint
+
+      - name: Build
+        run: npm run build

docs/TODO-backend-center-guild.md

@@ -8,7 +8,7 @@
 - [x] docker-compose（center/guild + mysql）
 - [x] 增加 `.env.example`（Center/Guild）
 - [x] 增加统一 lint/format 配置（eslint + prettier）
-- [ ] 增加基础 CI（build + lint）
+- [x] 增加基础 CI（build + lint）
 
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