v0.3.0: CI dotnet 8.0.424 pinned with isolated install

- Pin .NET SDK to 8.0.424 in all CI jobs to avoid floating channel drift

- Install SDK to runner temp via DOTNET_INSTALL_DIR to bypass

  C:\\Program Files\\dotnet overwrite/extract conflicts on Gitea Windows runners

- Simplify release job to dotnet publish + upload-artifact

- Exclude memory-bank/ via .gitignore (internal dev memory stays local)

.gitea/workflows/ci.yml

@@ -0,0 +1,126 @@
+name: CI
+
+on:
+  push:
+    branches:
+      - main
+    tags:
+      - "v*"
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  build:
+    runs-on: windows-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 1
+
+      - name: Setup .NET 8 SDK
+        uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: 8.0.424
+        env:
+          DOTNET_INSTALL_DIR: ${{ runner.temp }}\dotnet
+
+      - name: Cache NuGet packages
+        uses: actions/cache@v4
+        continue-on-error: true
+        with:
+          path: ~/.nuget/packages
+          key: nuget-${{ runner.os }}-${{ hashFiles('**/*.csproj', '.config/dotnet-tools.json') }}
+          restore-keys: |
+            nuget-${{ runner.os }}-
+
+      - name: Restore tools
+        run: dotnet tool restore
+
+      - name: Restore
+        run: dotnet restore src/RgbLedStripController/RgbLedStripController.csproj --configfile NuGet.Config
+
+      - name: Build (Release)
+        run: dotnet build src/RgbLedStripController/RgbLedStripController.csproj -c Release --no-restore
+
+  test:
+    runs-on: windows-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 1
+
+      - name: Setup .NET 8 SDK
+        uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: 8.0.424
+        env:
+          DOTNET_INSTALL_DIR: ${{ runner.temp }}\dotnet
+
+      - name: Cache NuGet packages
+        uses: actions/cache@v4
+        continue-on-error: true
+        with:
+          path: ~/.nuget/packages
+          key: nuget-${{ runner.os }}-${{ hashFiles('**/*.csproj', '.config/dotnet-tools.json') }}
+          restore-keys: |
+            nuget-${{ runner.os }}-
+
+      - name: Run tests (if any test projects exist)
+        shell: pwsh
+        run: |
+          $ErrorActionPreference = "Stop"
+          $tests = @(Get-ChildItem -Recurse -Filter "*Tests.csproj" | Where-Object { $_.FullName -notlike "*\obj\*" -and $_.FullName -notlike "*\bin\*" })
+          if ($tests.Count -eq 0) {
+            Write-Host "No test projects found yet; skipping dotnet test."
+            exit 0
+          }
+          foreach ($t in $tests) {
+            dotnet test $t.FullName -c Release
+            if ($LASTEXITCODE -ne 0) { throw "dotnet test failed for $($t.FullName)" }
+          }
+
+  release:
+    needs:
+      - build
+      - test
+    if: startsWith(gitea.ref, 'refs/tags/v')
+    runs-on: windows-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 1
+
+      - name: Setup .NET 8 SDK
+        uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: 8.0.424
+        env:
+          DOTNET_INSTALL_DIR: ${{ runner.temp }}\dotnet
+
+      - name: Cache NuGet packages
+        uses: actions/cache@v4
+        continue-on-error: true
+        with:
+          path: ~/.nuget/packages
+          key: nuget-${{ runner.os }}-${{ hashFiles('**/*.csproj', '.config/dotnet-tools.json') }}
+          restore-keys: |
+            nuget-${{ runner.os }}-
+
+      - name: Restore tools
+        run: dotnet tool restore
+
+      - name: Publish (Release, self-contained, single file)
+        run: dotnet publish src/RgbLedStripController/RgbLedStripController.csproj -c Release -r win-x64 --self-contained true -p:PublishSingleFile=true --configfile NuGet.Config
+
+      - name: Upload release artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          name: rgb-led-strip-controller-${{ gitea.ref_name }}-win-x64
+          path: |
+            src/RgbLedStripController/bin/Release/net8.0-windows10.0.19041.0/win-x64/publish/RgbLedStripController.exe
+            src/RgbLedStripController/bin/Release/net8.0-windows10.0.19041.0/win-x64/publish/RgbLedStripController.pdb
+          if-no-files-found: error