## Summary
* **What is the goal of this PR?** Provide support to koreader sync
server embedded in the popular *Calibre Web Automated* self-hosted
digital library solution.
* **What changes are included?**
* Trivial addition of **HTTP Basic Auth (RFC 7617) header** to
`lib/KOReaderSync/KOReaderSyncClient.cpp`
## Additional Context
None
---
### AI Usage
While CrossPoint doesn't have restrictions on AI tools in contributing,
please be transparent about their usage as it
helps set the right context for reviewers.
Did you use AI tools to help write this code? _**NO**_
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Co-authored-by: drbourbon <fabio@MacBook-Air-di-Fabio.local>
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