Add simple CI build

.github/dependabot.yml

@@ -0,0 +1,13 @@
+version: 2
+updates:
+  # Weekly checks for nuget package updates
+  - package-ecosystem: 'nuget'
+    directory: '/'
+    schedule:
+      interval: 'weekly'
+      day: 'monday'
+      time: '06:00'
+    groups:
+      npm-dependencies:
+        patterns:
+          - '*' # Group all updates together

.github/workflows/ci-build.yml

@@ -0,0 +1,53 @@
+on:
+  push:
+    branches:
+      - *
+  pull_request:
+    branches:
+      - master
+      - develop
+    types: [opened, reopened, synchronize]
+  workflow_call:
+  workflow_dispatch:
+
+name: ci-build
+
+env:
+  DOTNET_VERSION: 8.0.x
+  REGISTRY: ghcr.io
+
+jobs:
+
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup .NET SDK ${{ env.DOTNET_VERSION }}
+        uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: ${{ env.DOTNET_VERSION }}
+
+      - name: Install dependencies
+        run: dotnet restore
+
+      - name: Build
+        run: dotnet build --configuration Release --no-restore -o ./publish
+
+      - name: Test
+        run: dotnet test --no-restore --verbosity normal
+
+      - name: Upload artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          name: Package
+          path: |
+            publish/*.nupkg
+            publish/*.snupkg
+            publish/LucHeart.CoreOSC.dll
+            publish/LucHeart.CoreOSC.pdb
+            
+          retention-days: 7
+          if-no-files-found: error