[dhruvisompura]

Follow-up to #17165. This PR targets that branch, so merge #17165 first.

Summary

#17165 adds usePositronActionBarHoverManager, a hook that creates a PositronActionBarHoverManager for a React component and disposes it on unmount. Four components already did the same thing with a copied useState + useEffect block. This PR switches them to the hook:

• positronActionBarState.tsx (the manager every Positron action bar shares)
• consoleTabList.tsx (console session tabs)
• environmentHealthSection.tsx (welcome page environment health section)
• dataConnectionNodeDetailsPage.tsx (Data Connections details page)

There is no behavior change. Each component still creates one manager with the same settings, at the same time.

PositronActionBarState.hoverManager is now typed IHoverManager | undefined. The manager is created in an effect, so it has always been undefined on the first render. The old code hid that with useState<IHoverManager>(undefined!). Every reader already handled undefined except currentWorkingDirectory.tsx, which now uses ?..

Touching currentWorkingDirectory.tsx makes the pre-commit hook lint the whole file, and it fails on an existing jsx-a11y/no-static-element-interactions error. The working-directory label is a div with mouse handlers, and its right-click copy menu has no keyboard path. Fixing that is out of scope here, so this PR adds an eslint-disable-next-line comment that names it as existing debt.

Release Notes

New Features

• N/A

Bug Fixes

• N/A

Validation Steps

@:console @:sessions @:welcome @:connections @:editor-action-bar @:variables

Hover over buttons in a pane action bar, the console session tabs, the welcome page environment health section, and the Data Connections details page. Each tooltip should look and behave the same as before.

[github-actions]

E2E Tests 🚀
This PR will run tests tagged with: @:critical @:console @:sessions @:welcome @:connections @:editor-action-bar @:variables

Why these tags?

Tag	Source
@:critical	Always runs (required)
@:console	PR description
@:sessions	PR description
@:welcome	PR description
@:connections	PR description
@:editor-action-bar	PR description
@:variables	PR description

More on automatic tags from changed files.

Test count: Linux: 244 tests across 2 shards.

^{readme  valid tags}