feat: Add deterministic routing and sticky session load balancing

[taban03]

Description

• Implementation of deterministic routing (based on X-InstanceId header)
• Implementation of Sticky session load balancing (keeping behaviour from v2)

Type of change

• [ ] feat: New feature (non-breaking change which adds functionality)

Checklist:

• [ ] My code follows the style guidelines of this project
• [ ] PR title conforms to commit message guideline ## Commit Message Structure Guideline
• [ ] I have commented my code, particularly in hard-to-understand areas. In JS I did provide JSDoc
• [ ] I have made corresponding changes to the documentation
• [ ] My changes generate no new warnings
• [ ] I have added tests that prove my fix is effective or that my feature works
• [ ] New and existing unit tests pass locally with my changes
• [ ] The java tests in the area I was working on leverage @Nested annotations
• [ ] Any dependent changes have been merged and published in downstream modules

[sonarqubecloud[bot]]

Quality Gate passed

Issues
1 New issue
0 Accepted issues

Measures
0 Security Hotspots
89.8% Coverage on New Code
0.6% Duplication on New Code

See analysis details on SonarCloud