Initial commit: OpenRA game engine

Fork from OpenRA/OpenRA with one-click launch script (start-ra.cmd)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

.github/workflows/ci.yml

@@ -0,0 +1,68 @@
+name: Continuous Integration
+
+on:
+  push:
+    paths-ignore:
+      - '*.md'
+  pull_request:
+    branches: [ bleed, 'prep-*' ]
+    paths-ignore:
+      - '*.md'
+      - '*.py'
+
+permissions:
+  contents: read  #  to fetch code (actions/checkout)
+
+jobs:
+  linux:
+    name: Linux (.NET 8.0)
+    runs-on: ubuntu-22.04
+
+    steps:
+      - name: Clone Repository
+        uses: actions/checkout@v6
+
+      - name: Install .NET 8.0
+        uses: actions/setup-dotnet@v5
+        with:
+          dotnet-version: '8.0.x'
+
+      - name: Check Code
+        run: |
+          make check
+          make tests
+
+      - name: Check Mods
+        run: |
+          sudo apt-get install lua5.1
+          make check-scripts
+          make TREAT_WARNINGS_AS_ERRORS=true test
+
+  windows:
+    name: Windows (.NET 8.0)
+    runs-on: windows-2022
+
+    steps:
+      - name: Clone Repository
+        uses: actions/checkout@v6
+
+      - name: Install .NET 8.0
+        uses: actions/setup-dotnet@v5
+        with:
+          dotnet-version: '8.0.x'
+
+      - name: Check Code
+        shell: powershell
+        run: |
+          # Work around runtime failures on the GH Actions runner
+          dotnet nuget add source https://api.nuget.org/v3/index.json -n nuget.org
+          .\make.ps1 check
+          .\make.ps1 tests
+
+      - name: Check Mods
+        run: |
+          choco install lua --version 5.1.5.52 --no-progress
+          $ENV:Path = $ENV:Path + ";C:\Program Files (x86)\Lua\5.1\"
+          $ENV:TREAT_WARNINGS_AS_ERRORS = "true"
+          .\make.ps1 check-scripts
+          .\make.ps1 test