cli [MATRIX-1216] added basic auth support for mcp connections

Release Notes

New Features

Added basic authentication support for MCP_SERVER connection type

Checklist

[x] I have successfully built and used a custom CLI binary, without linter issues from this PR.
[x] I have clearly specified in the What section below whether this PR applies to Confluent Cloud, Confluent Platform, or both.
[x] I have verified this PR in Confluent Cloud pre-prod or production environment, if applicable.
[x] I have verified this PR in Confluent Platform on-premises environment, if applicable.
[x] I have attached manual CLI verification results or screenshots in the Test & Review section below.
[x] I have added appropriate CLI integration or unit tests for any new or updated commands and functionality.
[x] I confirm that this PR introduces no breaking changes or backward compatibility issues.
[x] I have indicated the potential customer impact if something goes wrong in the Blast Radius section below.
[x] I have put checkmarks below confirming that the feature associated with this PR is enabled in:
- [x] Confluent Cloud prod
- [x] Confluent Cloud stag
- [ ] Confluent Platform
- [ ] Check this box if the feature is enabled for certain organizations only

What

Added basic authentication support for MCP_SERVER connection type

Blast Radius

This is a new authentication feature support and independent to the existing ones so should not affect anything

References

https://confluentinc.atlassian.net/browse/MATRIX-1216

Test & Review

Added test for this and tested with locally built binary, snapshots of which is added in below thread https://confluent.slack.com/archives/CG6BW233L/p1762874095525569

Nov 11 '25 15:11 yanand0909

:tada: All Contributor License Agreements have been signed. Ready to merge.
_{Please push an empty commit if you would like to re-run the checks to verify CLA status for all contributors.}