[gohabereg]

Bug

Destroying a popover that never showed a hint leaves a window scroll listener on the page.

tooltip.hide() in @editorjs/helpers called prepare(), which constructs the CodeX Tooltips singleton when none exists. Constructing it registers window.addEventListener('scroll', ...), and the singleton is only released by an explicit tooltip.destroy(). ui-kit's popover items call tooltip.hide() from their own destroy(), so tearing down any popover created a tooltip just to hide it.

Found in document-model, where an e2e test checks that destroying an editor removes every document/window listener it added: once the UI plugins destroy their popovers (editor-js/document-model#174), the only listener left behind is this one.

Fix

• hide() does nothing when no tooltip exists yet. show() and onHover() still create it on first use.
• Version bumps so the fix gets published: @editorjs/helpers 1.2.2 → 1.2.3, and @editorjs/ui-kit 2.0.0 → 2.0.1, because ui-kit bundles the tooltip wrapper into its own dist.
• codex-tooltip ^1.0.6 → ^1.1.0 (Only hold the element and scroll listener while the tooltip is shown codex-team/codex.tooltips#32). 1.1.0 keeps the tooltip's element and window scroll listener only while it is shown, so a tooltip that was shown no longer outlives every popover. The hide() fix above covers teardown that never showed a hint; this covers the case where one was shown. ui-kit bundles the tooltip, so 2.0.1 ships with it.

Verification

• New packages/helpers/src/tooltip/tooltip.test.ts (codex-tooltip replaced by a stand-in): hide() with no tooltip, and after destroy(), constructs nothing; hide() hides an existing tooltip; show() creates it. The two "constructs nothing" cases fail without the fix.
• yarn test (198 tests) and yarn build pass. The changed files are lint-clean; repo-wide yarn lint reports the same 417 errors as main.
• ui-kit's Playwright suite passes with codex-tooltip 1.1.0 (242 passed; the 2 skipped are Chromium-only accessibility-tree checks).
• In Editor.js (editor-js/document-model), with this ui-kit build: destroying editors, including one whose hint was hovered, leaves no window listener and no tooltip element on Chromium and WebKit. The full e2e suite shows no regressions.

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