Align message-part class names with semconv (*Part suffix)

[rads-1996]

Description

Complies with the semantic conventions for non-normative models.

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How has this been tested?

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instructions so we can reproduce. List any relevant details for your test
configuration.

• All test suites have been run

Checklist

See CONTRIBUTING.md
for the style guide, changelog guidance, and more.

• Followed the style guidelines of this project
• Changelog updated if the change requires an entry
• Unit tests added
• Documentation updated

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[Copilot]

Pull request overview

This PR updates the shared opentelemetry-util-genai message-part model class names to align with the GenAI semantic conventions non-normative models (adding the *Part suffix), and propagates those renames through dependent instrumentation packages and their tests.

Changes:

• Rename util-genai message-part dataclasses (e.g., Text → TextPart, ToolCallRequest → ToolCallRequestPart) and update MessagePart accordingly.
• Update util-genai tests and several instrumentations (OpenAI, Anthropic, LangChain, Google GenAI, Qwen Agent, Agno) to use the new *Part names.
• Add per-package towncrier changelog fragments documenting the rename.

Reviewed changes

Copilot reviewed 36 out of 36 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
util/opentelemetry-util-genai/tests/test_workflow_invocation.py	Update workflow invocation tests to use TextPart.
util/opentelemetry-util-genai/tests/test_utils.py	Update helper constructors to use TextPart.
util/opentelemetry-util-genai/tests/test_upload.py	Update upload hook tests to use *Part types.
util/opentelemetry-util-genai/tests/test_toolcall.py	Update toolcall tests/docstrings to *Part names.
util/opentelemetry-util-genai/tests/test_handler_workflow.py	Update handler workflow tests to use TextPart.
util/opentelemetry-util-genai/tests/test_handler_fetch_response.py	Update fetch-response handler tests to use TextPart.
util/opentelemetry-util-genai/tests/test_handler_completion_hook.py	Update completion-hook tests to use TextPart.
util/opentelemetry-util-genai/tests/test_handler_agent.py	Update agent handler tests to use TextPart.
util/opentelemetry-util-genai/src/opentelemetry/util/genai/types.py	Rename message-part dataclasses to *Part and update MessagePart union.
util/opentelemetry-util-genai/src/opentelemetry/util/genai/_upload/completion_hook.py	Update hashability check to use TextPart.
util/opentelemetry-util-genai/src/opentelemetry/util/genai/_tool_invocation.py	Update docstring reference to ToolCallRequestPart.
util/opentelemetry-util-genai/README.rst	Update docs to mention *Part message types.
util/opentelemetry-util-genai/.changelog/365.changed	Add changelog fragment for the rename.
instrumentation/opentelemetry-instrumentation-google-genai/tests/interactions/test_parser.py	Update tests to assert *Part types.
instrumentation/opentelemetry-instrumentation-google-genai/src/opentelemetry/instrumentation/google_genai/message.py	Update message conversion to construct *Part types.
instrumentation/opentelemetry-instrumentation-google-genai/src/opentelemetry/instrumentation/google_genai/interactions.py	Update interactions conversion to use *Part types.
instrumentation/opentelemetry-instrumentation-google-genai/.changelog/365.changed	Add changelog fragment for the rename.
instrumentation/opentelemetry-instrumentation-genai-qwen-agent/src/opentelemetry/instrumentation/genai/qwen_agent/utils.py	Update Qwen Agent conversion helpers to *Part types.
instrumentation/opentelemetry-instrumentation-genai-qwen-agent/.changelog/365.changed	Add changelog fragment for the rename.
instrumentation/opentelemetry-instrumentation-genai-openai/tests/test_response_extractors.py	Update patching test to reference TextPart.
instrumentation/opentelemetry-instrumentation-genai-openai/src/opentelemetry/instrumentation/genai/openai/utils.py	Update OpenAI message prep to emit *Part types.
instrumentation/opentelemetry-instrumentation-genai-openai/src/opentelemetry/instrumentation/genai/openai/response_extractors.py	Update response extraction helpers to use TextPart / ReasoningPart.
instrumentation/opentelemetry-instrumentation-genai-openai/src/opentelemetry/instrumentation/genai/openai/chat_wrappers.py	Update streaming buffers to emit TextPart / ToolCallRequestPart.
instrumentation/opentelemetry-instrumentation-genai-openai/.changelog/365.changed	Add changelog fragment for the rename.
instrumentation/opentelemetry-instrumentation-genai-langchain/tests/test_callback_handler.py	Update LangChain tests to use TextPart / ToolCallRequestPart.
instrumentation/opentelemetry-instrumentation-genai-langchain/src/opentelemetry/instrumentation/genai/langchain/utils.py	Update LangChain conversion utilities to *Part types and docstrings.
instrumentation/opentelemetry-instrumentation-genai-langchain/src/opentelemetry/instrumentation/genai/langchain/callback_handler.py	Update callback handler to emit TextPart / ToolCallRequestPart.
instrumentation/opentelemetry-instrumentation-genai-langchain/.changelog/365.changed	Add changelog fragment for the rename.
instrumentation/opentelemetry-instrumentation-genai-anthropic/src/opentelemetry/instrumentation/genai/anthropic/utils.py	Update Anthropic conversion utilities to emit *Part types.
instrumentation/opentelemetry-instrumentation-genai-anthropic/.changelog/365.changed	Add changelog fragment for the rename.
instrumentation/opentelemetry-instrumentation-genai-agno/tests/requirements.oldest.txt	Add util-genai editable install note for oldest tests.
instrumentation/opentelemetry-instrumentation-genai-agno/src/opentelemetry/instrumentation/genai/agno/patch.py	Update Agno patching to use TextPart.
instrumentation/opentelemetry-instrumentation-genai-agno/pyproject.toml	Bump util-genai dependency lower bound to 1.1b0.dev.
instrumentation/opentelemetry-instrumentation-genai-agno/.changelog/365.changed	Add changelog fragment for the rename.
.github/skills/write-conformance-tests/SKILL.md	Update documentation table to reference *Part types.
.github/skills/migrate-from-openinference/SKILL.md	Update migration guidance to reference *Part types.