Create webpack.yml

[YixingTRD2943]

name: Build Android APK

on:
workflow_dispatch:

jobs:
build:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v4

  - name: Setup Flutter
    uses: subosito/flutter-action@v2
    with:
      flutter-version: '3.22.0'

  - name: Install dependencies
    run: flutter pub get

  - name: Build APK
    run: flutter build apk --release

  - name: Upload APK
    uses: actions/upload-artifact@v4
    with:
      name: release-apk
      path: build/app/outputs/flutter-apk/app-release.apk