fix(cc-store): fix store register method error handling

[Shreyas281299]

COMPLETES # https://jira-eng-sjc12.cisco.com/jira/browse/CAI-7498

This pull request addresses

If an error occured during registration the sdk was not throwing the error and widgets wernt handling the error properly causing the app to be stuck in the loading screen

by making the following changes

• Updated the SDK version with proper error being thrown
• Handled error that might happen when cc.register is invoked

Change Type

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Documentation update
• Tooling change
• Internal code refactor

The following scenarios were tested

• Blocked the subscribe url to throw error in the SDK, checked that the widgets are not stuck in an endless loading screen

Screen.Recording.2026-01-09.at.1.00.11.PM.mov

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• GAI was not used (or, no additional notation is required)
• Code was generated entirely by GAI
• GAI was used to create a draft that was subsequently customized or modified
• Coder created a draft manually that was non-substantively modified by GAI (e.g., refactoring was performed by GAI on manually written code)
• Tool used for AI assistance (GitHub Copilot / Other - specify)
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• This PR is related to
  • Feature
  • Defect fix
  • Tech Debt
  • Automation

Checklist before merging

• I have not skipped any automated checks
• All existing and new tests passed
• I have updated the testing document
• I have tested the functionality with amplify link

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