Settle on v1 setup method. Test run completed successfully from bootstrap to service setup.

- Refactor dnsmasq configuration and scripts for improved variable handling and clarity
- Updated dnsmasq configuration files to use direct variable references instead of data source functions for better readability.
- Modified setup scripts to ensure they are run from the correct environment and directory, checking for the WC_HOME variable.
- Changed paths in README and scripts to reflect the new directory structure.
- Enhanced error handling in setup scripts to provide clearer guidance on required configurations.
- Adjusted kernel and initramfs URLs in boot.ipxe to use the updated variable references.

bin/wild-config

@@ -7,7 +7,7 @@ set -o pipefail
 usage() {
     echo "Usage: wild-config <yaml_key_path>"
     echo ""
-    echo "Read a value from ./config.yaml using a YAML key path."
+    echo "Read a value from \$WC_HOME/config.yaml using a YAML key path."
     echo ""
     echo "Examples:"
     echo "  wild-config 'cluster.name'           # Get cluster name"
@@ -49,17 +49,25 @@ if [ -z "${KEY_PATH}" ]; then
     exit 1
 fi
 
-if [ ! -f "./config.yaml" ]; then
-    echo "Error: ./config.yaml not found in current directory"
+# Check if WC_HOME is set
+if [ -z "${WC_HOME:-}" ]; then
+    echo "Error: WC_HOME environment variable not set" >&2
+    exit 1
+fi
+
+CONFIG_FILE="${WC_HOME}/config.yaml"
+
+if [ ! -f "${CONFIG_FILE}" ]; then
+    echo "Error: config file not found at ${CONFIG_FILE}" >&2
     exit 1
 fi
 
 # Use yq to extract the value from the YAML file
-result=$(yq eval ".${KEY_PATH}" ./config.yaml)
+result=$(yq eval ".${KEY_PATH}" "${CONFIG_FILE}") 2>/dev/null
 
 # Check if result is null (key not found)
 if [ "${result}" = "null" ]; then
-    echo "Error: Key path '${KEY_PATH}' not found in ./config.yaml" >&2
+    echo "Error: Key path '${KEY_PATH}' not found in ${CONFIG_FILE}" >&2
     exit 1
 fi