fix(scripts): update probe.sh and test-vm.sh for improved functionality

Modified `probe.sh` to include shellcheck directives for better linting and added a source command for OS release information. Removed the hardcoded VM name in `test-vm.sh` to allow for more flexible VM configuration. These changes enhance script reliability and maintainability.

Author: kzndotsh

scripts/probe.sh

@@ -7,8 +7,10 @@ set -e
 set +o pipefail
 
 # Colors for output
+# shellcheck disable=SC2034 # RED and YELLOW reserved for future use
 RED='\033[0;31m'
 GREEN='\033[0;32m'
+# shellcheck disable=SC2034 # YELLOW reserved for future use
 YELLOW='\033[1;33m'
 BLUE='\033[0;34m'
 CYAN='\033[0;36m'
@@ -47,6 +49,7 @@ main() {
 
   if [ -f /etc/os-release ]; then
     print_section "OS Distribution"
+    # shellcheck source=/dev/null
     . /etc/os-release || true
     echo -e "  ${BOLD}Name:${NC} ${NAME:-N/A}"
     echo -e "  ${BOLD}Version:${NC} ${VERSION_ID:-N/A}"

scripts/test-vm.sh

@@ -4,7 +4,6 @@
 set -euo pipefail
 
 CONFIG_PATH="$(pwd)"
-VM_NAME="nixos-vm"
 
 echo "Building NixOS VM..."