fix: add missing Windows condition for model download step

Author: Minh141120

.github/workflows/test-binaries.yml

@@ -287,10 +287,20 @@ jobs:
             exit 1
           }
 
-      - name: Download test model
+      - name: Download test model (Linux/macOS)  
+        if: runner.os != 'Windows'
         run: |
           mkdir -p models
           curl -L -o models/Lucy-Q4_0.gguf "https://huggingface.co/Menlo/Lucy-gguf/resolve/main/Lucy-Q4_0.gguf"
+
+      - name: Download test model (Windows)
+        if: runner.os == 'Windows'
+        shell: pwsh
+        run: |
+          if (-not (Test-Path "models")) {
+            New-Item -ItemType Directory -Path "models"
+          }
+          Invoke-WebRequest -Uri "https://huggingface.co/Menlo/Lucy-gguf/resolve/main/Lucy-Q4_0.gguf" -OutFile "models\Lucy-Q4_0.gguf"
           
       - name: Verify binary (Linux/macOS)
         if: runner.os != 'Windows'