ci: add check for document code

.github/workflows/next-check.yml

@@ -0,0 +1,98 @@
+name: check document examples
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    paths:
+      - next/sources
+  schedule:
+    - cron: '0 10 * * 2'
+
+jobs:
+  build:
+    strategy:
+      matrix:
+        os: 
+          - name: ubuntu-latest
+          - name: macos-latest
+          - name: macos-14
+          - name: windows-latest
+        backend: [wasm, wasm-gc, js]
+    runs-on: ${{ matrix.os.name }}
+    continue-on-error: ${{ matrix.os.name == 'macos-14' }}
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: install
+        if: ${{ matrix.os.name != 'windows-latest' }}
+        run: |
+          /bin/bash -c "$(curl -fsSL https://cli.moonbitlang.com/install/unix.sh)"
+          echo "$HOME/.moon/bin" >> $GITHUB_PATH
+
+      - name: install on windows
+        if: ${{ matrix.os.name == 'windows-latest' }}
+        run: |
+          Set-ExecutionPolicy RemoteSigned -Scope CurrentUser; irm https://cli.moonbitlang.cn/install/powershell.ps1 | iex
+          "C:\Users\runneradmin\.moon\bin" | Out-File -FilePath $env:GITHUB_PATH -Append
+      
+      - name: moon version
+        run: |
+          moon version --all
+          moonrun --version
+
+      - name: moon check and test
+        if: ${{ matrix.os.name != 'windows-latest' }}
+        run: |
+          moon update
+          failed_directories=()
+          for dir in next/sources/*; do
+            if [ -d "$dir" ]; then
+              echo "Processing $dir"
+              if ! (cd "$dir" && moon install && moon check --target ${{ matrix.backend }} && moon test --target ${{ matrix.backend }}) --deny-warn; then
+                echo "Failed in $dir"
+                failed_directories+=("$dir")
+              fi
+            fi
+          done
+          if [ ${#failed_directories[@]} -ne 0 ]; then
+            echo "Commands failed in the following directories:"
+            for dir in "${failed_directories[@]}"; do
+              echo "$dir"
+            done
+            exit 1
+          fi
+      
+      - name: check result size
+        if: ${{ matrix.os.name != 'windows-latest' }}
+        run: |
+          find ./target -name '*.wasm' | xargs ls -lh
+          find ./target -name '*.js' | xargs ls -lh
+
+      - name: moon check and test on windows
+        if: ${{ matrix.os.name == 'windows-latest' }}
+        run: |
+          moon update
+          $failed_directories = @()
+          Get-ChildItem -Path ".\legacy\examples" -Directory | ForEach-Object {
+            Write-Output "Processing $($_.FullName)"
+            Set-Location $_.FullName
+            moon install && moon check --target ${{ matrix.backend }} && moon test --target ${{ matrix.backend }} --deny-warn
+            if (!$?) {
+              Write-Output "Failed in $($_.FullName)"
+              $failed_directories += $_.FullName
+            }
+            Set-Location -Path $env:GITHUB_WORKSPACE
+          }
+          if ($failed_directories.Count -ne 0) {
+            Write-Output "Commands failed in the following directories:"
+            $failed_directories | ForEach-Object { Write-Output $_ }
+            exit 1
+          }
+
+      - name: check result size on windows
+        if: ${{ matrix.os.name == 'windows-latest' }}
+        run: |
+          Get-ChildItem -Path ".\target" -Recurse -Filter "*.wasm" | ForEach-Object { "{0} ({1} bytes)" -f $_.FullName, $_.Length }
+          Get-ChildItem -Path ".\target" -Recurse -Filter "*.js" | ForEach-Object { "{0} ({1} bytes)" -f $_.FullName, $_.Length }