Add Windows client artifact build

.gitea/workflows/build.yml

@@ -74,3 +74,64 @@ jobs:
           name: modrinth-plus-linux
           path: target/release/bundle/**
           if-no-files-found: error
+
+  build-windows:
+    runs-on: ubuntu-latest
+    env:
+      MODRINTH_URL: https://modrinth.com/
+      MODRINTH_API_BASE_URL: https://api.modrinth.com/
+      MODRINTH_ARCHON_BASE_URL: https://archon.modrinth.com/
+      MODRINTH_API_URL: https://api.modrinth.com/v2/
+      MODRINTH_API_URL_V3: https://api.modrinth.com/v3/
+      MODRINTH_SOCKET_URL: wss://api.modrinth.com/
+      MODRINTH_LAUNCHER_META_URL: https://launcher-meta.modrinth.com/
+      XWIN_CACHE_DIR: .xwin-cache
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Node
+        uses: actions/setup-node@v4
+        with:
+          node-version-file: .nvmrc
+
+      - name: Setup pnpm
+        uses: pnpm/action-setup@v4
+        with:
+          version: 9.15.0
+
+      - name: Setup Rust
+        uses: dtolnay/rust-toolchain@stable
+        with:
+          targets: x86_64-pc-windows-msvc
+
+      - name: Setup Java
+        uses: actions/setup-java@v4
+        with:
+          distribution: temurin
+          java-version: "21"
+
+      - name: Install Windows cross-build dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y \
+            clang \
+            lld \
+            llvm \
+            nsis
+
+      - name: Install cargo-xwin
+        run: cargo install --locked cargo-xwin
+
+      - name: Install dependencies
+        run: pnpm install --frozen-lockfile
+
+      - name: Build Windows desktop client
+        run: pnpm --filter @modrinth/app exec tauri build --runner cargo-xwin --target x86_64-pc-windows-msvc --bundles nsis
+
+      - name: Upload Windows desktop client
+        uses: actions/upload-artifact@v4
+        with:
+          name: modrinth-plus-windows
+          path: target/x86_64-pc-windows-msvc/release/bundle/nsis/**
+          if-no-files-found: error