V2

[Iamsdt]

This pull request refactors the configuration structure for agent graphs, improves dependency injection for thread name generation, and streamlines service logic throughout the codebase. The most important changes include replacing the top-level graphs config section with direct keys like agent, adding support for a pluggable thread name generator, and cleaning up message handling in checkpointer services.

Configuration structure and validation:

• The configuration format now expects top-level keys such as agent, checkpointer, injectq, store, and thread_name_generator instead of a nested graphs dictionary. All related validation logic and template defaults have been updated accordingly. [1] [2] [3] [4] [5] [6]

Thread name generator integration:

• Added support for loading and injecting a custom ThreadNameGenerator via configuration and dependency injection, including new loader logic and property access in GraphConfig. [1] [2] [3] [4] [5]

Service logic improvements:

• Simplified message handling in checkpointer services by passing the full config instead of a minimal user-only config, improving consistency and future extensibility. [1] [2] [3] [4]

Template and code cleanup:

• Updated the default configuration template, fixed imports, and improved agent logic for tool usage, including minor formatting and logic fixes. [1] [2] [3] [4] [5] [6]

Miscellaneous improvements:

• Added new path settings for docs and root in FastAPI, improved error handling structure, and removed unused fields from schemas. [1] [2] [3] [4] [5]

These changes collectively modernize the configuration approach, enhance extensibility, and improve code maintainability.