docs(readme): add best practices link and remove star history

[szbr00]

Summary

Adds the Best Practices documentation link to the README resource list and removes the Star History section from both README files.

Issue Describe / Design

• The Best Practices page in curvine-doc consolidates production deployment/configuration recommendations; it is now linked from the README documentation resources, directly below Contribute guidelines.
• The Star History chart is removed from README.md and README_zh.md as it is no longer desired on the project page.
• The use-case diagram referenced by the README (curvine-scene.png in curvine-doc) is redrawn in the companion PR docs(overview): redraw curvine-scene diagram for the 6 use cases curvine-doc#81; no URL change is needed here since the referenced file path is unchanged.

Changes

Module / File	Change	Impact on existing behavior
README.md	Added Best Practices link; removed Star History section	Documentation-only
README_zh.md	Removed Star History section	Documentation-only

Test verified

Test case	Result	Notes
Best Practices URL reachable	PASS	https://curvineio.github.io/docs/User-Manuals/best-practices
Markdown structure check after edit	PASS	License section is now the last section
make format	SKIPPED	Markdown-only change; no Rust code touched

Dependencies

• Related PRs: docs(overview): redraw curvine-scene diagram for the 6 use cases curvine-doc#81 (use-case diagram refresh)
• Related issues: None
• Blocks / blocked by: None