chore: update run_agents_script to get values from deployment

[NirajC3-Microsoft]

Purpose

This pull request improves the robustness of extracting the apiAppName value in both the PowerShell and Bash agent setup scripts. The changes add additional fallback mechanisms to handle variations in deployment output key names and ensure apiAppName is always set, even if the expected keys are missing.

Enhancements to deployment output extraction:

• Added logic to check for alternative key names (chatApiAppName and CHAT_API_APP_NAME) if apiAppName is not found, increasing compatibility with AVM deployments. [1] [2]
• Implemented a final fallback that derives apiAppName from solutionName using a standard naming convention if all other methods fail. [1] [2]

Does this introduce a breaking change?

• Yes
• No

How to Test

• Get the code

git clone [repo-address]
cd [repo-name]
git checkout [branch-name]
npm install

• Test the code

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