fix: io inference for agent workflows

[cristipufu]

Description

This PR fixes input/output schema inference for agent workflows by adding special handling for BaseWorkflowAgent instances. The changes ensure that workflow agents have properly defined schemas for both input and output, with the input schema defaulting to a simple user message structure and the output schema using the agent's output_cls when available.

[Copilot]

Pull Request Overview

This PR fixes input/output schema inference for agent workflows by adding special handling for BaseWorkflowAgent instances. The changes ensure that workflow agents have properly defined schemas for both input and output, with the input schema defaulting to a simple user message structure and the output schema using the agent's output_cls when available.

• Added BaseWorkflowAgent-specific schema generation logic
• Enhanced output serialization to handle AgentOutput responses
• Updated package version and dependencies

Reviewed Changes

Copilot reviewed 3 out of 4 changed files in this pull request and generated 2 comments.

File	Description
src/uipath_llamaindex/_cli/cli_init.py	Added BaseWorkflowAgent import and special schema generation logic for workflow agents
src/uipath_llamaindex/_cli/_runtime/_runtime.py	Added AgentOutput handling in the output serialization process
pyproject.toml	Bumped version to 0.0.35 and updated uipath dependency requirement

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