Redis cluster support

[SerGeRybakov]

Added

• Redis Cluster Support: CallGate now supports Redis clusters in addition to single Redis instances
• Pre-initialized Redis Client Support: New redis_client parameter accepts pre-initialized Redis or RedisCluster clients
• Enhanced Type Safety: Better type annotations and IDE support for Redis configurations
• New Error Type: CallGateRedisConfigurationError for Redis configuration issues

Changed

• Redis Storage Initialization: Now supports both pre-initialized clients and legacy kwargs
• Improved Documentation: All docstrings converted to English with RST format
• Test Infrastructure: Cluster tests are isolated and excluded from CI/CD pipeline
• Makefile Enhancements: Added cluster test targets for all Python versions (3.9-3.14)

Deprecated

• Redis Connection Parameters via kwargs: Using Redis connection parameters through **kwargs is deprecated and will be removed in version 2.0.0
• Legacy Redis Configuration: Users should migrate to the redis_client parameter with pre-initialized clients

Fixed

• Connection Validation: Added ping() validation for Redis clients during CallGate initialization
• Serialization Handling: Improved serialization for RedisStorage with pre-initialized clients
• Docker Compose Configuration: Removed volumes and auto-restart for better test isolation

[codecov-commenter]

Codecov Report

❌ Patch coverage is 92.57143% with 13 lines in your changes missing coverage. Please review.
✅ Project coverage is 98.14%. Comparing base (7ab939e) to head (bd17be9).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
call_gate/storages/redis.py	92.36%	7 Missing and 3 partials ⚠️
call_gate/gate.py	88.88%	0 Missing and 3 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #49      +/-   ##
==========================================
- Coverage   98.38%   98.14%   -0.25%     
==========================================
  Files           7        7              
  Lines         682      807     +125     
  Branches       73      100      +27     
==========================================
+ Hits          671      792     +121     
- Misses          4        7       +3     
- Partials        7        8       +1     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.