fix: exception handling missing folder

[cristipufu]

No description provided.

[Copilot]

Pull Request Overview

This PR centralizes the UIPATH_FOLDER_KEY validation in the _register method, removes a duplicate check, and updates the package version.

• Adds an early check for the UIPATH_FOLDER_KEY environment variable with a descriptive error.
• Removes the redundant folder key validation block later in the method.
• Bumps the project version from 0.0.88 to 0.0.89.

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
src/uipath_mcp/_cli/_runtime/_runtime.py	Moved UIPATH_FOLDER_KEY env var check to the top of _register and removed duplicate logic.
pyproject.toml	Updated project version to 0.0.89.

Comments suppressed due to low confidence (2)

src/uipath_mcp/_cli/_runtime/_runtime.py:263

• No tests cover the new UIPATH_FOLDER_KEY missing scenario. Consider adding unit tests to verify that a UiPathMcpRuntimeError is raised with the correct code and messages when the env var is absent.

folder_key = os.environ.get("UIPATH_FOLDER_KEY")

pyproject.toml:3

• The version bump isn’t accompanied by a changelog entry. Please add a note in CHANGELOG.md (or equivalent) summarizing the fix for missing folder key validation.

version = "0.0.89"

[Copilot]

[nitpick] The string literal "UIPATH_FOLDER_KEY" is repeated. Extract it into a module-level constant (e.g. FOLDER_KEY_ENV_VAR) to avoid duplication and typos.

Suggested change

	folder_key = os.environ.get("UIPATH_FOLDER_KEY")
	if not folder_key:
	raise UiPathMcpRuntimeError(
	"REGISTRATION_ERROR",
	"No UIPATH_FOLDER_KEY environment variable set.",
	"Please set the UIPATH_FOLDER_KEY environment variable.",
	folder_key = os.environ.get(FOLDER_KEY_ENV_VAR)
	if not folder_key:
	raise UiPathMcpRuntimeError(
	"REGISTRATION_ERROR",
	f"No {FOLDER_KEY_ENV_VAR} environment variable set.",
	f"Please set the {FOLDER_KEY_ENV_VAR} environment variable.",