ci: merge IO tests into main test matrix

- Run IO test project alongside legacy core tests in existing 18-entry matrix\n- Skip net9.0 entries (IO does not target net9.0)\n- Remove standalone io-test job

Author: hueifeng

.github/workflows/dotnetcore.yml

@@ -8,10 +8,7 @@
 #
 # Architecture:
 #   changed  -> skip detection (docs-only PRs skip tests)
-#   test     -> build & test matrix (legacy core test project)
-#   io-test-macos -> Magicodes.IE.IO dedicated regression suite on Apple-Silicon
-#                    (-c Debug activates the CRC32 self-check; guards #1-class
-#                     arm64 platform traps that x86-only CI would miss)
+#   test     -> build & test matrix (legacy core + IO test projects)
 #   check    -> alls-green gate (single required status check)
 #
 # Test runner:
@@ -52,6 +49,7 @@ env:
   DOTNET_SYSTEM_CONSOLE_ALLOW_ANSI_COLOR_REDIRECTION: 1
   TERM: xterm
   TEST_PROJECT: src/Magicodes.ExporterAndImporter.Tests/Magicodes.IE.Tests.csproj
+  IO_TEST_PROJECT: tests/Magicodes.IE.IO.Tests/Magicodes.IE.IO.Tests.csproj
 
 jobs:
 
@@ -274,90 +272,32 @@ jobs:
           if-no-files-found: ignore
           retention-days: 7
 
-  ###################################################
-  # IO PERF-REGRESSION GUARD (Apple Silicon / arm64)
-  #
-  # Runs the *dedicated* Magicodes.IE.IO test project
-  # (tests/Magicodes.IE.IO.Tests) on Apple-Silicon. This is the project that
-  # holds XlsxIoPerfRegressionTests — the round-trip + ZipArchive-reopen guard
-  # for the ForwardOnlyZipWriter CRC32 path. The main matrix above targets the
-  # legacy core test project only, so without this job the IO regression suite
-  # never ran in CI and an arm64 CRC bug (#1 class) could slip through on
-  # x86-only runners.
-  #
-  # Built/tested in -c Debug on purpose: ForwardOnlyZipWriter contains a
-  # #if DEBUG CRC32 self-check ("123456789" => 0xCBF43926). A wrong arm64 CRC
-  # throws at assembly load, failing the whole run immediately — the cheapest,
-  # strongest platform trap. (Release runtime CRC is still exercised by the
-  # ZipArchive reopen assertions inside the tests.)
-  ###################################################
-
-  io-test-macos:
-    name: IO Tests (macOS arm64 / Debug)
-    needs: changed
-    if: needs.changed.outputs.should_skip != 'true'
-    runs-on: macos-15
-    timeout-minutes: 20
-    env:
-      IO_TEST_PROJECT: tests/Magicodes.IE.IO.Tests/Magicodes.IE.IO.Tests.csproj
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-
-      - name: Setup .NET SDK
-        uses: actions/setup-dotnet@v4
-        with:
-          dotnet-version: |
-            8.0.x
-          cache: true
-          cache-dependency-path: |
-            Magicodes.IE.sln
-            src/**/*.csproj
-
-      - name: Restore
+      - name: Restore IO
         run: dotnet restore ${{ env.IO_TEST_PROJECT }}
 
-      - name: Build
-        run: dotnet build ${{ env.IO_TEST_PROJECT }} -c Debug --no-restore -bl
+      - name: Build IO
+        run: dotnet build ${{ env.IO_TEST_PROJECT }} -c Release --no-restore -bl
 
-      - name: Test
-        shell: bash
-        run: |
-          set +e
-          dotnet test ${{ env.IO_TEST_PROJECT }} \
-            -c Debug --no-build \
-            -f net8.0 \
-            --blame-hang-timeout 10m \
-            --blame-crash-dump-type full \
-            --blame-hang-dump-type full \
-            --logger "trx;LogFileName=results-io-macos-debug.trx" \
-            --logger GitHubActions \
-            --results-directory TestResults
-          TEST_EXIT=$?
-          set -e
-          if [ $TEST_EXIT -ne 0 ]; then
-            echo "::error::IO tests failed on macOS arm64 (Debug CRC self-check active)"
-            exit 1
-          fi
+      - name: Test IO
+        if: matrix.framework != 'net9.0'
+        run: >
+          dotnet test ${{ env.IO_TEST_PROJECT }}
+          -c Release --no-build
+          -f ${{ matrix.framework }}
+          --blame-hang-timeout 10m
+          --logger "trx;LogFileName=results-io-${{ matrix.framework }}.trx"
+          --logger GitHubActions
+          --results-directory TestResults
 
-      - name: Upload test results
-        if: always()
+      - name: Upload IO test results
+        if: always() && matrix.framework != 'net9.0'
         uses: actions/upload-artifact@v4
         with:
-          name: io-test-results-macos-debug
+          name: io-test-results-${{ runner.os }}-${{ matrix.framework }}
           path: TestResults
           if-no-files-found: ignore
           retention-days: 7
 
-      - name: Upload build log
-        if: failure()
-        uses: actions/upload-artifact@v4
-        with:
-          name: io-build-log-macos-debug
-          path: msbuild.binlog
-          if-no-files-found: ignore
-          retention-days: 7
-
   ###################################################
   # ALLS-GREEN GATE
   # Single required status check for branch protection.
@@ -367,7 +307,7 @@ jobs:
   check:
     name: CI Passed
     if: always()
-    needs: [changed, test, io-test-macos]
+    needs: [changed, test]
     runs-on: ubuntu-latest
     steps:
       - name: Evaluate results