fix(core): report contentDOM replacement mutations

[ocavue]

What

• Track when the browser removes a node view's contentDOM.
• Report subsequent replacement mutations until contentDOM is restored, so ProseMirror can preserve the first typed character.
• Keep Lit on Chromium and WebKit as expected failures because prosemirror/prosemirror#1581 requires an upstream fix.
• Add a patch changeset for @prosemirror-adapter/core.

Why

After the browser removes contentDOM, the adapter reports that removal but ignores the following replacement mutations because their targets are no longer inside the detached contentDOM. ProseMirror therefore never sees the newly typed content.

This change keeps reporting mutations inside the node view until contentDOM is restored. It fixes the regression for Preact, React, Solid, Svelte, and Vue. Lit still exposes an upstream prosemirror-view content-element recovery problem.

Validation

• pnpm fix
• pnpm typecheck
• pnpm lint
• pnpm build
• Targeted Playwright matrix: 16 regular passes and 2 expected Lit failures, reported as 18 passed

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Project	Deployment	Actions	Updated (UTC)
prosemirror-adapter-e2e	Ready	Preview, Comment	Jul 24, 2026 6:13pm

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commit: 5404e4b