fix: Improve Swift manual installation with better error handling

- Switch to curl for more reliable downloads with better error reporting
- Try Swift 6.0.2 first, fallback to 6.0.1 if download fails
- Add dependency installation (curl) before downloading
- Use dynamic directory detection for extracted Swift
- Add detailed logging for troubleshooting download issues
- Improve robustness of fallback Swift installation process

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: fatbobman

.github/workflows/linux-compatibility.yml

@@ -29,17 +29,35 @@ jobs:
       run: |
         echo "Swift setup failed, attempting manual installation..."
         
-        # Download Swift
-        wget -q https://download.swift.org/swift-6.0.3-release/ubuntu2004/swift-6.0.3-RELEASE-ubuntu20.04.tar.gz
+        # Install dependencies
+        sudo apt-get update
+        sudo apt-get install -y curl
+        
+        # Try Swift 6.0.2 (more stable release)
+        SWIFT_URL="https://download.swift.org/swift-6.0.2-release/ubuntu2004/swift-6.0.2-RELEASE-ubuntu20.04.tar.gz"
+        echo "Downloading Swift from: $SWIFT_URL"
+        
+        # Download with better error handling
+        if ! curl -fsSL -o swift.tar.gz "$SWIFT_URL"; then
+          echo "Failed to download Swift, trying alternative version..."
+          # Try Swift 6.0.1 as fallback
+          SWIFT_URL="https://download.swift.org/swift-6.0.1-release/ubuntu2004/swift-6.0.1-RELEASE-ubuntu20.04.tar.gz"
+          curl -fsSL -o swift.tar.gz "$SWIFT_URL"
+        fi
         
         # Extract Swift
-        tar xzf swift-6.0.3-RELEASE-ubuntu20.04.tar.gz
+        echo "Extracting Swift..."
+        tar xzf swift.tar.gz
+        
+        # Find the extracted directory
+        SWIFT_DIR=$(find . -maxdepth 1 -name "swift-6.0*-ubuntu20.04" -type d | head -1)
+        echo "Swift directory: $SWIFT_DIR"
         
         # Add to PATH
-        echo "$PWD/swift-6.0.3-RELEASE-ubuntu20.04/usr/bin" >> $GITHUB_PATH
+        echo "$PWD/$SWIFT_DIR/usr/bin" >> $GITHUB_PATH
         
         # Verify installation
-        $PWD/swift-6.0.3-RELEASE-ubuntu20.04/usr/bin/swift --version
+        "$PWD/$SWIFT_DIR/usr/bin/swift" --version
     
     - name: Verify Swift installation
       run: |