ci(workflows): refactored CI matrix to consolidate variant builds and simplify configuration

- Refactored CI matrix to consolidate variant builds into a single loop per platform-arch combination.
- Simplified build configuration by moving variant-specific RUSTFLAGS into build script logic instead of matrix entries.
- Updated artifact naming to use glob pattern for multi-variant uploads.

.github/workflows/ci.yml

@@ -43,50 +43,22 @@ jobs:
           - os: ubuntu-22.04
             platform: linux
             arch: x64
-            variant: modern
-            variant_suffix: "-modern"
-            rustflags: "-C target-cpu=x86-64-v3"
-          - os: ubuntu-22.04
-            platform: linux
-            arch: x64
-            variant: baseline
-            variant_suffix: "-baseline"
-            rustflags: "-C target-cpu=x86-64-v2"
+            variants: baseline modern
           - os: ubuntu-22.04
             platform: linux
             arch: arm64
-            variant: ""
-            variant_suffix: ""
             target: aarch64-unknown-linux-gnu
           - os: macos-15-intel
             platform: darwin
             arch: x64
-            variant: modern
-            variant_suffix: "-modern"
-            rustflags: "-C target-cpu=x86-64-v3"
-          - os: macos-15-intel
-            platform: darwin
-            arch: x64
-            variant: baseline
-            variant_suffix: "-baseline"
-            rustflags: "-C target-cpu=x86-64-v2"
+            variants: baseline modern
           - os: macos-14
             platform: darwin
             arch: arm64
-            variant: ""
-            variant_suffix: ""
           - os: windows-latest
             platform: win32
             arch: x64
-            variant: modern
-            variant_suffix: "-modern"
-            rustflags: "-C target-cpu=x86-64-v3"
-          - os: windows-latest
-            platform: win32
-            arch: x64
-            variant: baseline
-            variant_suffix: "-baseline"
-            rustflags: "-C target-cpu=x86-64-v2"
+            variants: baseline modern
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v4
@@ -106,20 +78,32 @@ jobs:
         run: |
           sudo apt-get update
           sudo apt-get install -y gcc-aarch64-linux-gnu
-      - name: Build native addon
+      - name: Build native addon(s)
         env:
           CROSS_TARGET: ${{ matrix.target }}
           TARGET_PLATFORM: ${{ matrix.platform }}
           TARGET_ARCH: ${{ matrix.arch }}
-          TARGET_VARIANT: ${{ matrix.variant }}
           CARGO_TARGET_AARCH64_UNKNOWN_LINUX_GNU_LINKER: aarch64-linux-gnu-gcc
-          RUSTFLAGS: ${{ matrix.rustflags }}
-        run: bun --cwd=packages/natives run build:native
-      - name: Upload native addon
+        shell: bash
+        run: |
+          VARIANTS="${{ matrix.variants }}"
+          if [ -z "$VARIANTS" ]; then
+            bun --cwd=packages/natives run build:native
+          else
+            for variant in $VARIANTS; do
+              case "$variant" in
+                baseline) export RUSTFLAGS="-C target-cpu=x86-64-v2" ;;
+                modern)   export RUSTFLAGS="-C target-cpu=x86-64-v3" ;;
+              esac
+              export TARGET_VARIANT="$variant"
+              bun --cwd=packages/natives run build:native
+            done
+          fi
+      - name: Upload native addon(s)
         uses: actions/upload-artifact@v4
         with:
-          name: pi-natives-${{ matrix.platform }}-${{ matrix.arch }}${{ matrix.variant_suffix }}
-          path: packages/natives/native/pi_natives.${{ matrix.platform }}-${{ matrix.arch }}${{ matrix.variant_suffix }}.node
+          name: pi-natives-${{ matrix.platform }}-${{ matrix.arch }}
+          path: packages/natives/native/pi_natives.${{ matrix.platform }}-${{ matrix.arch }}*.node
           if-no-files-found: error
 
   test: