AY Guide: add missing meta descriptions

- to all chapters/appendixes
- manually backported from #1878

Author: taroth21

xml/ay_bigfile.xml

@@ -36,6 +36,12 @@
     <phrase>Installation</phrase>
   </meta>
   <revhistory xml:id="rh-book-autoyast">
+    <revision>
+      <date>2026-04-09</date>
+      <revdescription>
+        <para/>
+      </revdescription>
+    </revision>
     <revision>
       <date>2019-12-09</date>
       <revdescription>
@@ -49,6 +55,7 @@
  <chapter xml:id="introduction">
   <title>Introduction</title>
   <info>
+    <meta name="description" its:translate="yes">Learn how to deploy multiple systems in parallel using AutoYaST profiles to automate installation, configuration and post-installation tasks</meta>
    <revhistory xml:id="rh-ay-introduction">
    <revision>
      <date>2025-03-28</date>
@@ -215,6 +222,7 @@
  <chapter xml:id="Profile">
   <title>The Control File</title>
   <info>
+    <meta name="description" its:translate="yes">Learn how to create and edit XML control files that define system configuration with resources, properties and nested structures</meta>
     <revhistory xml:id="rh-ay-profile">
    <revision>
      <date>2025-03-28</date>
@@ -455,6 +463,7 @@ exit 0
  <chapter xml:id="CreateProfile">
   <title>Creating a Control File</title>
   <info>
+    <meta name="description" its:translate="yes">Learn how to create a YaST profile either by utilizing existing system components or cloning the entire system configuration for automated installation</meta>
     <revhistory xml:id="rh-ay-createprofile">
    <revision>
      <date>2025-03-28</date>
@@ -739,6 +748,7 @@ exit 0
 <!-- {{{ Kdump -->
   <title>Configuration and Installation Options</title>
   <info>
+    <meta name="description" its:translate="yes">Discover configuration details for services, user and group management, partitions, firewalls, and other key system components through practical examples</meta>
     <revhistory xml:id="rh-ay-configuration">
    <revision>
      <date>2025-03-28</date>
@@ -14666,6 +14676,7 @@ exit 0
  <chapter xml:id="rulesandclass">
   <title>Rules and Classes</title>
   <info>
+    <meta name="description" its:translate="yes">Learn to configure automated installations by using rules and classes to define system configurations and merge control files efficiently</meta>
     <revhistory xml:id="rh-ay-rulsandclass">
    <revision>
      <date>2025-03-28</date>
@@ -15898,6 +15909,7 @@ echo -n 100
  <chapter xml:id="Invoking">
   <title>The Auto-Installation Process</title>
   <info>
+    <meta name="description" its:translate="yes">Learn how to configure and start automated installations using network boot, flash disks or kernel command-line options</meta>
     <revhistory xml:id="rh-ay-invoking">
    <revision>
      <date>2025-03-28</date>
@@ -16866,6 +16878,18 @@ autoyast: file:///info
  </chapter>
  <chapter xml:id="InstalledSystem">
   <title>Running &ay; in an Installed System</title>
+  <info>
+    <meta name="description" its:translate="yes">Configure a YaST profile to manage both software and user accounts within an installed system, then review its settings for updates</meta>
+    <revhistory xml:id="rh-ay-installed-system">
+   <revision>
+     <date>2025-03-28</date>
+     <revdescription>
+       <para/>
+     </revdescription>
+   </revision>
+ </revhistory>
+</info>
+
    <para>
     In some cases it is useful to run &ay; in a running system.
    </para>
@@ -16938,6 +16962,7 @@ autoyast: file:///info
  <appendix xml:id="handlingrules">
   <title>Handling Rules</title>
   <info>
+    <meta name="description" its:translate="yes">Learn the details of configuring, testing, and troubleshooting the YaST tools to optimize rule retrieval and merge processes for system administration</meta>
     <revhistory xml:id="rh-ay-handlingrules">
    <revision>
      <date>2025-03-28</date>
@@ -16965,6 +16990,17 @@ autoyast: file:///info
  </appendix>
  <appendix xml:id="app-ay-faq">
   <title>&ay; FAQ - Frequently Asked Questions</title>
+  <info>
+    <meta name="description" its:translate="yes">Explore common questions and their answers on mass deployement with &ay;</meta>
+    <revhistory xml:id="rh-ay-faq">
+   <revision>
+     <date>2025-03-28</date>
+     <revdescription>
+       <para/>
+     </revdescription>
+   </revision>
+ </revhistory>
+</info>
   <qandaset>
    <qandaentry xml:id="qa-ay-invoke">
     <question>
@@ -17263,6 +17299,7 @@ mv /var/run/zypp.sav /var/run/zypp.pid
  <appendix xml:id="appendix-linuxrc">
   <title>Advanced Linuxrc Options</title>
   <info>
+    <meta name="description" its:translate="yes">Configure and manage Linuxrc settings, modules, rescue systems, and YaST operations using parameters and configuration files across multiple locations</meta>
     <revhistory xml:id="rh-ay-linuxrc">
    <revision>
      <date>2025-03-28</date>