ci: test all packages on Windows in one job (#1557)

Each push started a Windows job for React, Solid, Keymap, QRCode and
SSH. Each spent about a minute on setup for 3-11s of tests. Build and
test them in one Windows job in Build Core instead. It gets the native
library the same way as the core tests, and the required Core check now
covers it.

.github/workflows/build-core.yml

@@ -257,6 +257,90 @@ jobs:
         with:
           name: crash-dumps-core-${{ matrix.os }}-${{ github.run_attempt }}
 
+  # Each package's Windows tests take seconds, and a Windows runner takes about a minute to set up, so
+  # the packages share this job. Their own workflows test them on Linux and macOS.
+  packages-windows:
+    name: Test packages (Windows)
+    permissions:
+      contents: read
+      actions: read
+    runs-on: blacksmith-8vcpu-windows-2025
+    defaults:
+      run:
+        shell: bash
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v6
+
+      - name: Setup Bun
+        uses: oven-sh/setup-bun@v2
+        with:
+          bun-version: 1.4.1
+
+      - name: Install dependencies
+        run: bun install
+
+      - name: Restore native host bottle
+        id: bottle
+        uses: ./.github/actions/restore-native-host-bottle
+        with:
+          zig-version: ${{ env.ZIG_VERSION }}
+
+      - name: Install native host bottle
+        if: steps.bottle.outputs.cache-hit == 'true'
+        run: bun scripts/native-bottle.ts package --hit true --zig "${{ env.ZIG_VERSION }}" --skip-symbols
+
+      - name: Wait for native libraries
+        if: steps.bottle.outputs.cache-hit != 'true'
+        env:
+          GITHUB_TOKEN: ${{ github.token }}
+        run: bun scripts/wait-for-job.ts --name "Build Native Libraries"
+
+      - name: Download native artifacts
+        if: steps.bottle.outputs.cache-hit != 'true'
+        uses: actions/download-artifact@v8
+        with:
+          name: native-libraries
+          path: packages/core/node_modules/@opentui/
+
+      - name: Build packages
+        id: build
+        run: |
+          (cd packages/core && bun run build:lib)
+          for package in react solid keymap; do (cd "packages/$package" && bun run build --ci); done
+          for package in qrcode ssh; do (cd "packages/$package" && bun run build); done
+
+      # Run every package's tests even when an earlier package fails.
+      - name: Typecheck SSH
+        if: ${{ !cancelled() && steps.build.outcome == 'success' }}
+        working-directory: packages/ssh
+        run: bun run typecheck
+
+      - name: Test React
+        if: ${{ !cancelled() && steps.build.outcome == 'success' }}
+        working-directory: packages/react
+        run: bun run test
+
+      - name: Test Solid
+        if: ${{ !cancelled() && steps.build.outcome == 'success' }}
+        working-directory: packages/solid
+        run: bun run test
+
+      - name: Test Keymap
+        if: ${{ !cancelled() && steps.build.outcome == 'success' }}
+        working-directory: packages/keymap
+        run: bun run test
+
+      - name: Test QRCode
+        if: ${{ !cancelled() && steps.build.outcome == 'success' }}
+        working-directory: packages/qrcode
+        run: bun run test
+
+      - name: Test SSH
+        if: ${{ !cancelled() && steps.build.outcome == 'success' }}
+        working-directory: packages/ssh
+        run: bun run test
+
   bun-1-compat:
     name: Bun 1.3 compatibility
     needs: build
@@ -293,13 +377,13 @@ jobs:
   # Gate job for branch protection
   build-complete:
     name: Core - Build and Test
-    needs: [build, test, bun-1-compat]
+    needs: [build, test, packages-windows, bun-1-compat]
     runs-on: blacksmith-4vcpu-ubuntu-2404
     if: always()
     steps:
       - name: Check test results
         run: |
-          if [ "${{ needs.build.result }}" != "success" ] || [ "${{ needs.test.result }}" != "success" ] || [ "${{ needs['bun-1-compat'].result }}" != "success" ]; then
+          if [ "${{ needs.build.result }}" != "success" ] || [ "${{ needs.test.result }}" != "success" ] || [ "${{ needs['packages-windows'].result }}" != "success" ] || [ "${{ needs['bun-1-compat'].result }}" != "success" ]; then
             echo "Tests failed"
             exit 1
           fi

.github/workflows/build-keymap.yml

@@ -24,7 +24,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [blacksmith-8vcpu-ubuntu-2404, blacksmith-8vcpu-windows-2025]
+        os: [blacksmith-8vcpu-ubuntu-2404]
     runs-on: ${{ matrix.os }}
     defaults:
       run:

.github/workflows/build-qrcode.yml

@@ -23,7 +23,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [blacksmith-8vcpu-ubuntu-2404, blacksmith-8vcpu-windows-2025]
+        os: [blacksmith-8vcpu-ubuntu-2404]
     runs-on: ${{ matrix.os }}
     defaults:
       run:

.github/workflows/build-react.yml

@@ -23,7 +23,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [blacksmith-8vcpu-ubuntu-2404, blacksmith-8vcpu-windows-2025]
+        os: [blacksmith-8vcpu-ubuntu-2404]
     runs-on: ${{ matrix.os }}
     defaults:
       run:

.github/workflows/build-solid.yml

@@ -24,7 +24,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [blacksmith-8vcpu-ubuntu-2404, blacksmith-8vcpu-windows-2025]
+        os: [blacksmith-8vcpu-ubuntu-2404]
     runs-on: ${{ matrix.os }}
     defaults:
       run:

.github/workflows/build-ssh.yml

@@ -24,7 +24,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [blacksmith-12vcpu-macos-15, blacksmith-8vcpu-ubuntu-2404, blacksmith-8vcpu-windows-2025]
+        os: [blacksmith-12vcpu-macos-15, blacksmith-8vcpu-ubuntu-2404]
     runs-on: ${{ matrix.os }}
     defaults:
       run:
@@ -52,9 +52,6 @@ jobs:
         uses: mlugg/setup-zig@v2
         with:
           version: ${{ env.ZIG_VERSION }}
-          # Keep Zig's cache path on the workspace drive, but do not restore/save
-          # stale .zig-cache archives on Windows can contain missing cache files.
-          use-cache: ${{ runner.os != 'Windows' }}
           cache-key: build-ssh
 
       - name: Build core