Use inquirer prompt to select response mode

[chhavi-mandowara-cstk]

feat: use inquirer select prompt for response mode instead of text input

[github-actions]

🔒 Security Scan Results

ℹ️ Note: Only vulnerabilities with available fixes (upgrades or patches) are counted toward thresholds.

Check Type	Count (with fixes)	Without fixes	Threshold	Result
🔴 Critical Severity	0	0	10	✅ Passed
🟠 High Severity	0	0	25	✅ Passed
🟡 Medium Severity	0	0	500	✅ Passed
🔵 Low Severity	0	0	1000	✅ Passed

⏱️ SLA Breach Summary

✅ No SLA breaches detected. All vulnerabilities are within acceptable time thresholds.

Severity	Breaches (with fixes)	Breaches (no fixes)	SLA Threshold (with/no fixes)	Status
🔴 Critical	0	0	15 / 30 days	✅ Passed
🟠 High	0	0	30 / 120 days	✅ Passed
🟡 Medium	0	0	90 / 365 days	✅ Passed
🔵 Low	0	0	180 / 365 days	✅ Passed

✅ BUILD PASSED - All security checks passed

[Copilot]

Pull request overview

This PR improves the interactive CLI UX by switching the “response mode” prompt from free-text input to an Inquirer list selection, ensuring users can only choose supported modes (buffered or streaming).

Changes:

• Replaced input + manual validation/normalization with a list prompt for response mode selection in both GitHub and FileUpload adapters.
• Simplified streaming enablement logic to a direct equality check against the selected value.
• Updated adapter unit tests to assert the new prompt shape (type: 'list', choices) and adjusted response-mode mapping cases accordingly.

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated no comments.

File	Description
src/adapters/github.ts	Switches response mode prompt to a list selection and simplifies mapping to isStreamingEnabled.
src/adapters/github.test.ts	Updates tests to expect the list prompt and its choices; adjusts mapping/behavior assertions.
src/adapters/file-upload.ts	Switches response mode prompt to a list selection and simplifies mapping to isStreamingEnabled.
src/adapters/file-upload.test.ts	Updates tests to expect the list prompt and its choices; adjusts mapping/behavior assertions.

---

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