Improve error handling for model response parsing

[theabhishekbhujang]

Add error handling for JSON parsing in response.

[Copilot]

Pull Request Overview

This PR enhances error handling when parsing JSON responses from model APIs in the translation processor. The changes ensure that JSON parsing failures are caught and reported with clear error messages instead of allowing the application to crash with raw parsing errors.

• Adds try-catch block around JSON.parse for model response handling
• Adds empty try-catch for onProgress callback at function start
• Provides descriptive error message when JSON parsing fails

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[Copilot]

Empty catch block silences all errors without logging or handling them. If onProgress can fail, the error should be logged for debugging purposes. Consider logging the error with a descriptive message or removing the try-catch if onProgress is not expected to throw.

Suggested change

	} catch {}
	} catch (error) {
	console.error("Error in onProgress callback at initial progress:", error);
	}

[sumitsaurabh927]

@theabhishekbhujang please resolve the comment

[github-actions]

Hey @theabhishekbhujang! Just checking in - are you still working on this PR? We noticed there are some comments that may need addressing. If you need more time, no problem! Just let us know. If we don't hear back within a week, we'll close this to keep the repo tidy, but you can always reopen when ready.