chore: Bump client version to 0.12.5

Version bump for LangChain integration improvements:
- Accept single memory object in create_long_term_memory
- Improved tool descriptions
- Better LLM compatibility

Author: abrookins

agent-memory-client/agent_memory_client/__init__.py

@@ -5,7 +5,7 @@
 memory management capabilities for AI agents and applications.
 """
 
-__version__ = "0.12.4"
+__version__ = "0.12.5"
 
 from .client import MemoryAPIClient, MemoryClientConfig, create_memory_client
 from .exceptions import (