[Kayvan-Zahiri]

Summary

Fixes #32: RedisDataStore.get() returned raw bytes from redis-py, so cached JSON could not be consumed as the str values the rest of the SDK expects.

Pass decode_responses=True when constructing the Redis client so GET/SET use UTF-8 strings, matching the IDataStore contract.

Tests

• Three new unit tests mock the Redis client and verify constructor options plus string round-trips.
• tests/test_redis_data_store.py: all pass after the change.
• Broader offline run: 207 tests passed, 4 skipped; one telemetry test failed in the full parallel run but passed in isolation on unchanged main (order/timing sensitivity). No live Redis or hosted Statsig calls.

AI assistance

Patch and tests were written with AI assistance, reviewed locally, and published from a signed commit on my fork.