RDKB-60436 : Develop Code.

[LakshminarayananShenbagaraj]

Reason for change:
RDKB-59763 - Develop that US acceptance criteria.

Test Procedure:
Build should passed
WANManager functionality should work without any issue

Risks: Medium

[CLAassistant]

Thank you for your submission! We really appreciate it. Like many open source projects, we ask that you sign our Contributor License Agreement before we can accept your contribution.
_{You have signed the CLA already but the status is still pending? Let us recheck it.}

[Copilot]

Pull Request Overview

This PR implements WAN Manager status event handling via RBUS to trigger network response scripts based on WAN connectivity changes. It subscribes to WAN status events and executes appropriate network response actions when the WAN interface transitions to "Up" state or other conditions.

Key Changes:

• Added RBUS event subscription for WAN Manager current status changes
• Implemented event handler to trigger network_response.sh script based on WAN status
• Enhanced network_response.sh to check for Hotspot interface availability in addition to LTE

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 3 comments.

File	Description
cosa_rbus_handler_apis.h	Added WAN Manager status TR181 parameter definition and function declaration for WAN status event subscription
cosa_rbus_handler_apis.c	Implemented WAN status event handler and subscription logic to trigger network response scripts
network_response.sh	Added Hotspot interface availability check alongside existing LTE interface check

---

_{Tip: Customize your code reviews with copilot-instructions.md. Create the file or learn how to get started.}

[Copilot]

Pull Request Overview

Copilot reviewed 3 out of 3 changed files in this pull request and generated 3 comments.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[Copilot]

Pull Request Overview

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[Copilot]

Pull Request Overview

Copilot reviewed 3 out of 3 changed files in this pull request and generated 9 comments.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[Copilot]

Pull Request Overview

Copilot reviewed 3 out of 3 changed files in this pull request and generated 3 comments.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[Copilot]

Pull Request Overview

Copilot reviewed 3 out of 3 changed files in this pull request and generated 2 comments.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[Copilot]

Pull Request Overview

Copilot reviewed 3 out of 3 changed files in this pull request and generated no new comments.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.