Fix: Add timeout to GitHub API curl to prevent hanging

Issue: Checking for latest release was hanging and closing SSH connection

Solution: Add --connect-timeout 5 and --max-time 10 to curl command
- Prevents indefinite blocking on network issues
- Falls back to v2.0.1-rc4 if API unreachable
- Script continues even if GitHub API is slow/down

modules/security/malware-scanner.sh

@@ -285,9 +285,9 @@ install_maldet_only() {
         rm -f "$temp_file"
     fi
 
-    # Get latest release dynamically from GitHub API
+    # Get latest release dynamically from GitHub API (with timeout)
     local latest_release
-    latest_release=$(curl -s "https://api.github.com/repos/rfxn/linux-malware-detect/releases/latest" 2>/dev/null | grep -o '"tag_name":"[^"]*' | head -1 | cut -d'"' -f4)
+    latest_release=$(curl -s --connect-timeout 5 --max-time 10 "https://api.github.com/repos/rfxn/linux-malware-detect/releases/latest" 2>/dev/null | grep -o '"tag_name":"[^"]*' | head -1 | cut -d'"' -f4)
 
     # Download sources in priority order
     # Format: "name|url|label" (using | as delimiter to avoid splitting https://)