feat: add shared PostgreSQL fnOS service and refresh UI

fnos/cmd/install_callback

@@ -3,7 +3,8 @@ set -eu
 
 PASSWORD="${wizard_admin_password:-}"
 PASSWORD_CONFIRM="${wizard_admin_password_confirm:-}"
-unset wizard_admin_password wizard_admin_password_confirm
+POSTGRES_ENROLLMENT_TOKEN="${wizard_postgres_enrollment_token:-}"
+unset wizard_admin_password wizard_admin_password_confirm wizard_postgres_enrollment_token
 
 fail() {
     printf '%s\n' "$1" >&2
@@ -19,10 +20,16 @@ fail() {
 case "$PASSWORD" in
     *$'\n'*|*$'\r'*) fail "管理员密码不能包含换行符。" ;;
 esac
+[ "${#POSTGRES_ENROLLMENT_TOKEN}" -ge 20 ] || fail "PostgreSQL 应用接入令牌至少需要 20 个字符。"
+[ "${#POSTGRES_ENROLLMENT_TOKEN}" -le 256 ] || fail "PostgreSQL 应用接入令牌不能超过 256 个字符。"
+case "$POSTGRES_ENROLLMENT_TOKEN" in
+    *$'\n'*|*$'\r'*) fail "PostgreSQL 应用接入令牌不能包含换行符。" ;;
+esac
 
 mkdir -p "${TRIM_PKGVAR}/run" "${TRIM_PKGVAR}/log"
 chmod 0700 "${TRIM_PKGVAR}" "${TRIM_PKGVAR}/run" 2>/dev/null || true
 umask 077
 printf '%s\n' "$PASSWORD" >"${TRIM_PKGVAR}/admin-password.seed"
-unset PASSWORD PASSWORD_CONFIRM
+printf '%s\n' "$POSTGRES_ENROLLMENT_TOKEN" >"${TRIM_PKGVAR}/postgres-enrollment-token.seed"
+unset PASSWORD PASSWORD_CONFIRM POSTGRES_ENROLLMENT_TOKEN
 exit 0