Bsb/release 0.3.8 (#169)

* fix: strip provider-specific IDs from cached AIMessages

Cached AIMessages preserved provider metadata (OpenAI rs_ IDs,
system fingerprints, Anthropic msg_ IDs) in additional_kwargs and
response_metadata. When both original and cached messages existed
in conversation state, the OpenAI Responses API rejected the request
with "Duplicate item found with id rs_...".

Strip all provider fields on deserialization, keeping only content
and the cached: True marker. Serialization is unchanged — full
responses are still preserved in the cache.

* chore(release): bumped to version 0.3.8

Author: bsbodden

pyproject.toml

@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "langgraph-checkpoint-redis"
-version = "0.3.7"
+version = "0.3.8"
 description = "Redis implementation of the LangGraph agent checkpoint saver and store."
 authors = ["Brian Sam-Bodden <bsb@redis.com>", "Redis Inc. <applied.ai@redis.com>"]
 license = "MIT"