ServiceNow Change Schedule Enhancement (#2646)

* Create change_soc.js

* Create config.js

* Create data.js

* Create README.md

Author: tab22

Client-Side Components/UI Scripts/Custom Change Schedule/README.md

@@ -0,0 +1,36 @@
+# 🧾 ServiceNow Change Schedule Enhancement  
+### _(UI Scripts: `sn_chg_soc.change_soc`, `sn.chg_soc.config`, `sn.chg_soc.data`)_  
+
+---
+
+## 📘 Overview  
+
+This customization extends the **ServiceNow Change Schedule (Change Calendar)** functionality.  
+The enhancement adds visibility and interactivity to the Change Calendar by including:  
+
+- A **Short Description** column in the Change Schedule view.  
+- A **configurable UI** allowing users to toggle visibility of columns such as _Configuration Item_, _Short Description_, and _Duration_.  
+- Integration of additional data services for fetching and rendering change records with enhanced details.  
+- A **Change Schedule button** that refreshes and displays these changes dynamically.  
+
+The result is a more informative and user-friendly Change Schedule interface for Change Managers, CAB members, and ITSM users.  
+
+---
+
+## 🧩 Architecture  
+
+| Module | Description |
+|--------|-------------|
+| **`sn_chg_soc.change_soc`** | Main controller and directive for the Change Schedule Gantt Chart UI. Handles initialisation, rendering, zoom, and popovers. |
+| **`sn.chg_soc.config`** | Manages configuration settings for displayed columns and schedules (blackout, maintenance). Allows toggling visibility. |
+| **`sn.chg_soc.data`** | Provide the data on the gantt chat from the change records
+
+
+Requirement:
+As an ITIL user, you can click the Change Schedule button to navigate directly to the Change Schedule view.
+This allows you to see all planned changes and plan your own changes accordingly, especially useful for customers who do not have a well-established CMDB integrated with Discovery.
+
+<img width="1505" height="809" alt="image" src="https://github.com/user-attachments/assets/4af1b6cb-87e6-4a53-a243-6592fbf548c1" />
+
+<img width="1913" height="877" alt="image" src="https://github.com/user-attachments/assets/fc0a6f46-febd-45bb-a741-78462fa1512a" />
+