Refactor and Optimize CI Workflow (#9083)

* Refactor and Optimize CI Workflow

* Refactor and Optimize CI Workflow (Added input option value annotations for clarity.)

.github/workflows/build.yml

@@ -0,0 +1,71 @@
+name: build
+
+on:
+  workflow_call:
+    inputs:
+      target: # windows linux macos
+        required: true
+        type: string
+      project:
+        required: false
+        type: string
+        default: './v2rayN.Desktop/v2rayN.Desktop.csproj'
+
+jobs:
+  build:
+    name: build x64 arm64
+    strategy:
+      matrix:
+        arch: [ x64, arm64 ]
+    runs-on: |-
+      ${{
+        case(
+          inputs.target == 'macos', 'macos-latest',
+          inputs.target == 'linux', 'ubuntu-24.04',
+          'ubuntu-latest'
+        )
+      }}
+    env:
+      Output: "${{ github.workspace }}/${{ matrix.arch }}"
+      RID: |-
+        ${{
+          case(
+            inputs.target == 'macos', format('osx-{0}', matrix.arch),
+            inputs.target == 'windows', format('win-{0}', matrix.arch),
+            format('{0}-{1}', inputs.target, matrix.arch)
+          )
+        }}
+      Project: ${{ inputs.project }}
+      ExtOpt: |-
+        ${{
+          case(
+            inputs.target == 'windows', '-p:EnableWindowsTargeting=true',
+            ''
+          )
+        }}
+
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v6.0.2
+      with:
+        submodules: 'recursive'
+        fetch-depth: '0'
+
+    - name: Setup .NET
+      uses: actions/setup-dotnet@v5.2.0
+      with:
+        dotnet-version: '8.0.x'
+
+    - name: Build v2rayN
+      working-directory: ./v2rayN
+      run: dotnet publish $Project -c Release -r $RID -p:SelfContained=true $ExtOpt -o $Output
+
+    - name: Build AmazTool
+      working-directory: ./v2rayN
+      run: dotnet publish ./AmazTool/AmazTool.csproj -c Release -r $RID -p:SelfContained=true -p:PublishTrimmed=true $ExtOpt -o $Output
+
+    - name: Upload build artifacts
+      uses: actions/upload-artifact@v7.0.1
+      with:
+        name: ${{ matrix.arch }}
+        path: ${{ matrix.arch }}