PB 1591 introduce ToolMetdata type

[nathan962]

PR introduces ToolMetadata type, important for use within the SDK, tool node and in future the resource service.

Has helper functions for checking if metadata is empty or incomplete. Useful for before saving a workflow to check the ToolMetadata is complete and valid before saving.

[Copilot]

Pull request overview

This PR introduces a new ToolMetadata type to the uncertainty_engine_types package. The type provides a structured way to store and validate metadata about tools, specifically their inputs and outputs at the node/handle level.

• Adds a new ToolMetadata Pydantic model with nested dictionaries mapping NodeId -> HandleLabel -> NodeInputInfo/NodeOutputInfo
• Implements validation methods (is_empty(), has_partial_data(), validate_complete()) to ensure metadata completeness
• Includes comprehensive test coverage with 9 test cases covering all validation scenarios

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

File	Description
uncertainty_engine_types/tool_metadata.py	New file introducing the ToolMetadata class with inputs/outputs fields and validation methods
uncertainty_engine_types/init.py	Added import and export of ToolMetadata type
tests/test_tool_metadata.py	Comprehensive test suite covering empty, partial, and complete metadata validation scenarios

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[nathan962]

Thanks @cariad, agree with those suggestions. I'll go make some changes 🔧

[cariad]

Really nice use of those new test fixtures! Thanks!