Python: Fixed Redis context provider and samples (#4030)

* Removed session_id filtering in Mem0 implementation

* Fixed redis samples

* Resolved comments

python/packages/redis/agent_framework_redis/_context_provider.py

@@ -129,7 +129,7 @@ class RedisContextProvider(BaseContextProvider):
         if not input_text.strip():
             return
 
-        memories = await self._redis_search(text=input_text, session_id=context.session_id)
+        memories = await self._redis_search(text=input_text)
         line_separated_memories = "\n".join(
             str(memory.get("content", "")) for memory in memories if memory.get("content")
         )
@@ -337,7 +337,7 @@ class RedisContextProvider(BaseContextProvider):
         filter_expression: Any | None = None,
         return_fields: list[str] | None = None,
         num_results: int = 10,
-        alpha: float = 0.7,
+        linear_alpha: float = 0.7,
     ) -> list[dict[str, Any]]:
         """Runs a text or hybrid vector-text search with optional filters."""
         await self._ensure_index()
@@ -374,7 +374,7 @@ class RedisContextProvider(BaseContextProvider):
                     vector_field_name=self.vector_field_name,
                     text_scorer=text_scorer,
                     filter_expression=combined_filter,
-                    alpha=alpha,
+                    linear_alpha=linear_alpha,
                     dtype=self.redis_vectorizer.dtype,
                     num_results=num_results,
                     return_fields=return_fields,