Add Windows CI workflow (#699)

* Initial plan

* Add Windows CI workflow using MSYS2

Co-authored-by: lidaobing <27529+lidaobing@users.noreply.github.com>

* Update checkout action to v2 for consistency

Co-authored-by: lidaobing <27529+lidaobing@users.noreply.github.com>

* Add explicit permissions to Windows CI workflow

Co-authored-by: lidaobing <27529+lidaobing@users.noreply.github.com>

* 1

* 1

* 1

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Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: lidaobing <27529+lidaobing@users.noreply.github.com>
Co-authored-by: LI Daobing <lidaobing@gmail.com>

Author: Copilot

.github/workflows/windows.yml

@@ -0,0 +1,47 @@
+name: Windows CI
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  build-on-windows:
+    runs-on: windows-latest
+    permissions:
+      contents: read
+    defaults:
+      run:
+        shell: msys2 {0}
+    steps:
+      - uses: actions/checkout@v2
+      
+      - name: Setup MSYS2
+        uses: msys2/setup-msys2@v2
+        with:
+          msystem: MINGW64
+          update: true
+          install: >-
+            mingw-w64-x86_64-gcc
+            mingw-w64-x86_64-meson
+            mingw-w64-x86_64-ninja
+            mingw-w64-x86_64-pkg-config
+            mingw-w64-x86_64-gtk3
+            mingw-w64-x86_64-glib2
+            mingw-w64-x86_64-jsoncpp
+            mingw-w64-x86_64-libsigc++
+            mingw-w64-x86_64-gettext-tools
+            mingw-w64-x86_64-appstream
+      
+      - name: Configure
+        run: meson setup build
+      
+      - name: Build
+        run: meson compile -C build
+      
+      - name: Install
+        run: meson install -C build
+      
+      - name: Test
+        run: meson test -C build --verbose --no-stdsplit