fix: add Windows CI matrix and install.ps1 syntax validation by reviewer-B

Author: Coding-Dev-Tools

.github/workflows/ci.yml

@@ -48,7 +48,10 @@ jobs:
           echo "SKILL.md OK"
 
   test:
-    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest]
+    runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v4
       - name: Run validation tests

tests/validate.sh

@@ -32,5 +32,10 @@ done
 # CHANGELOG.md version header
 grep -qE '^## \[[0-9]+\.[0-9]+\.[0-9]+\]' "$ROOT/CHANGELOG.md" || { echo "FAIL: CHANGELOG.md no version header"; fail=1; }
 
+# Validate install.ps1 syntax (if pwsh available)
+if command -v pwsh &>/dev/null; then
+  pwsh -NoProfile -Command "\$e=@(); [System.Management.Automation.PSParser]::Tokenize((Get-Content -Raw install.ps1),[ref]\$e)|Out-Null; if(\$e.Count){exit 1}" 2>/dev/null || { echo "FAIL: install.ps1 syntax error"; fail=1; }
+fi
+
 echo "=== $([ "$fail" -eq 0 ] && echo 'ALL PASSED' || echo 'SOME FAILED') ==="
 exit $fail