Add Business Rule: Enhance Incident Description with Linked Problem Statement (#1776)

* Add Business Rule: Enhance Incident Description with Linked Problem Statement

* Add README for Enhance Incident with Linked Problem Business Rule

Author: harshal045

Server-Side Components/Business Rules/EnhanceIncidentWithProblem/EnhanceIncidentWithProblem.js

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+function executeRule(current, previous /*null when async*/) {
+    try {
+        // Check if problem_id was added or changed
+        var isNewLink = !previous || current.problem_id.changes();
+
+        if (isNewLink && current.problem_id) {
+            var problemGR = new GlideRecord("problem");
+
+            if (problemGR.get(current.problem_id)) {
+                var problemStatement = problemGR.short_description;
+                var problemNumber = problemGR.number;
+
+                // Append to description
+                current.description = (current.description || '') +
+                    "\n\n[Linked Problem] " + problemNumber + ": " + problemStatement;
+            }
+        }
+    } catch (ex) {
+        gs.error("An unexpected error occurred while enhancing the Incident with Problem details.");
+    }
+})(current, previous);

Server-Side Components/Business Rules/EnhanceIncidentWithProblem/README.md

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+# Enhance Incident Description with Linked Problem Statement
+
+## Overview
+This ServiceNow Business Rule enhances Incident records by automatically appending the short description of a linked Problem record. It improves visibility and context for support teams working on related incidents.
+
+## Features
+- Triggered when a Problem ID is newly linked or changed on an Incident.
+- Fetches the Problem's short description and number.
+- Appends the Problem Statement to both the Incident's short description and description fields.
+- Includes general error handling to ensure stability.
+
+## Business Rule Configuration
+- Table: `incident`
+- When to Run: `before insert` and `before update`
+- Condition: 
+  ```javascript
+  current.problem_id.changes() || !previous