initramfs: use /etc/ntp.conf (with ntpd.conf symlink), fix CPIO redirection, add customization logs

• scripts/lib/initramfs.sh: write /etc/ntp.conf, symlink ntpd.conf if absent; compute absolute output path before cd so cpio|xz redirection works; emit verification logs around initramfs_finalize_customization()

• config/zinit/init/ntpd.sh: robust parsing of kernel ntp=, safe defaults, and launch BusyBox ntpd with -p servers

config/zinit/init/ntpd.sh

@@ -1,24 +1,24 @@
 #!/bin/sh
-set -e
+set -eu
 
 # Ensure /etc/ntp.conf exists for tools/hooks expecting it
-if [ -f /etc/ntpd.conf ] && [ ! -e /etc/ntp.conf ]; then
+if [ ! -e /etc/ntp.conf ] && [ -f /etc/ntpd.conf ]; then
   ln -sf /etc/ntpd.conf /etc/ntp.conf
 fi
 # dhcpcd hook may write into /var/lib/ntp
 mkdir -p /var/lib/ntp
 
 # Extract ntp=... from kernel cmdline if present
-ntp_flags=""
+ntp_flags="$(grep -o 'ntp=[^ ]*' /proc/cmdline 2>/dev/null | sed 's/^ntp=//' || true)"
 
 params=""
-if [ -n "" ]; then
+if [ -n "${ntp_flags}" ]; then
   # Convert comma-separated list into multiple -p args
-  params="-p "
+  params="-p $(printf '%s' "${ntp_flags}" | sed 's/,/ -p /g')"
 else
   # Sensible defaults when no ntp= is provided
   params="-p time.google.com -p time1.google.com -p time2.google.com -p time3.google.com"
 fi
 
 # BusyBox ntpd uses -p servers on CLI; /etc/ntp.conf symlink above helps alternative daemons.
-exec ntpd -n 
+exec ntpd -n ${params}