Add config file support for unattended installations

Features:
- --config-file option for automated installs
- Example config at /root/install-archzfs.conf.example
- Validates required fields before install
- Config only used when explicitly specified (safety)

Bug fixes:
- Fix pacstrap hanging on provider prompts (use yes pipe)
- Remove fsck from mkinitcpio HOOKS (ZFS doesn't use fsck)
- Add hostid support for ZFS boot
- Add spl.spl_hostid to kernel command line

Documentation:
- Comprehensive README.org with 15 sections
- Session context tracking file

1 files changed, 4 insertions, 0 deletions

diff --git a/build.sh b/build.sh
index 7fdbee7..9e2be40 100755
--- a/build.sh
+++ b/build.sh
@@ -168,6 +168,10 @@ cp "$CUSTOM_DIR/install-archzfs" "$PROFILE_DIR/airootfs/usr/local/bin/"
 cp "$CUSTOM_DIR/install-claude" "$PROFILE_DIR/airootfs/usr/local/bin/"
 cp "$CUSTOM_DIR/archsetup-zfs" "$PROFILE_DIR/airootfs/usr/local/bin/"
 
+# Copy example config for unattended installs
+mkdir -p "$PROFILE_DIR/airootfs/root"
+cp "$CUSTOM_DIR/install-archzfs.conf.example" "$PROFILE_DIR/airootfs/root/"
+
 # Set permissions in profiledef.sh
 info "Setting file permissions..."
 if grep -q "file_permissions=" "$PROFILE_DIR/profiledef.sh"; then