ci: add GitHub Action for prettier format check

Add format-check workflow that runs prettier --check across all packages
on push/PR to main/develop branches.

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

.github/workflows/format-check.yml

@@ -0,0 +1,65 @@
+name: Format Check
+
+on:
+  push:
+    branches:
+      - main
+      - develop
+    paths:
+      - '**.ts'
+      - '**.tsx'
+      - '**.js'
+      - '**.jsx'
+      - 'pnpm-lock.yaml'
+      - 'package.json'
+      - 'packages/*/package.json'
+      - 'shared/*/package.json'
+      - '.prettierrc'
+      - '.prettierrc.*'
+      - '.prettierignore'
+      - '.github/workflows/format-check.yml'
+  pull_request:
+    paths:
+      - '**.ts'
+      - '**.tsx'
+      - '**.js'
+      - '**.jsx'
+      - 'pnpm-lock.yaml'
+      - 'package.json'
+      - 'packages/*/package.json'
+      - 'shared/*/package.json'
+      - '.prettierrc'
+      - '.prettierrc.*'
+      - '.prettierignore'
+      - '.github/workflows/format-check.yml'
+
+defaults:
+  run:
+    shell: 'bash'
+
+jobs:
+  format-check:
+    name: Prettier Format Check
+    runs-on: ubuntu-latest
+    timeout-minutes: 5
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Install pnpm
+        uses: pnpm/action-setup@v4
+        with:
+          version: 9
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '18'
+          cache: 'pnpm'
+
+      - name: Install dependencies
+        run: pnpm install --frozen-lockfile
+
+      - name: Run format check
+        run: pnpm run format:check

.prettierignore

@@ -0,0 +1,9 @@
+node_modules
+dist
+build
+coverage
+.next
+.vite
+*.min.js
+*.min.css
+pnpm-lock.yaml

package.json

@@ -25,7 +25,7 @@
     "tenants:seed:latest": "lerna run cli:tenants:seed:latest --scope \"@bigcapital/server\"",
     "generate:sdk-types": "lerna run openapi:export --scope \"@bigcapital/server\" && lerna run generate --scope \"@bigcapital/sdk-ts\" && lerna run build --scope \"@bigcapital/sdk-ts\"",
     "format": "lerna run format",
-    "format:check": "lerna run format:check"
+    "format:check": "prettier --check 'packages/*/src/**/*.{ts,tsx,js,jsx}' 'shared/*/src/**/*.{ts,tsx,js,jsx}'"
   },
   "devDependencies": {
     "@commitlint/cli": "^17.4.2",
@@ -35,7 +35,8 @@
     "@playwright/test": "^1.32.3",
     "husky": "^8.0.3",
     "lerna": "^8.1.2",
-    "pnpm": "^9.0.5"
+    "pnpm": "^9.0.5",
+    "prettier": "^3.0.0"
   },
   "engines": {
     "node": "16.x || 17.x || 18.x"