(do-not-merge) new feature trunk: tasks

[creatorrr]

trafficstars

Todo list

• [ ] add option in task definition: tools_available: "all" which will automatically add all of the tools that the agent has access to
• [ ] consistent and semantically correct naming of event types (running, started etc)
• [ ] validations for all task, workflow and execution definitions
• [ ] add checks to cozo queries

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:rocket:	This description was created by Ellipsis for commit 9683d7835aa6c8c6f1e80b368d5ffaed69fc05cd

Summary:

Enhances task management with new features, consistent naming, validations, CRUD operations, and migration scripts.

Key points:

• Add tools_available: "all" option in task definition to include all tools accessible to the agent (agents-api/agents_api/autogen/openapi_model.py).
• Ensure consistent and semantically correct naming of event types (e.g., running, started).
• Implement validations for all task, workflow, and execution definitions.
• Add checks to Cozo queries.
• Add migration script agents-api/agents_api/migrations/migrate_1716939839_task_relations.py.
• Introduce relations: tasks, executions, transitions with up (create) and down (remove) queries.
• Use run function to execute queries formatted as JSON.
• Rename list_sessions to list_tasks in agents-api/agents_api/routers/tasks/routers.py.
• Modify activity definitions in agents-api/agents_api/activities/task_steps/__init__.py for various workflow steps.
• Add cel-python dependency in pyproject.toml.
• Introduce prompt_step and transition_step activities.
• Update TaskProtocol, ExecutionInput, StepContext, and TransitionInfo.
• Modify create_execution_transition_query to handle new transition data.
• Refactor llm_generate and caching mechanism.
• Enhance PydanticPayloadConverter for better serialization.
• Implement TaskExecutionWorkflow to manage task execution flow.
• Update transition type logic in agents-api/agents_api/workflows/task_execution.py to handle awaiting_input, finish, and step states.
• Add TasksManager and AsyncTasksManager classes in sdks/python/julep/managers/task.py for task management.
• Introduce CRUD operations for tasks and task executions.
• Update Client and AsyncClient classes in sdks/python/julep/client.py to include task management capabilities.
• Add methods for listing, creating, retrieving, and starting task executions.
• Ensure type checking with beartype decorator.
• Add tests for task management in agents-api/tests/test_tasks.py and sdks/python/tests/test_tasks.py.

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