deps: migrate markdown-it to markdown-exit

[antfubot]

Summary

Replaces the direct markdown-it dependency in packages/devtools with markdown-exit, a drop-in TypeScript rewrite of markdown-it with compatible plugin API and its own types.

• packages/devtools/client/composables/client-services/markdown.ts now lazily imports createMarkdownExit from markdown-exit instead of the default-exported MarkdownIt constructor.
• Dropped @types/markdown-it (no longer needed — markdown-exit ships its own types).
• Renamed the markdown-it Vite chunk key in packages/devtools/client/nuxt.config.ts to markdown-exit.
• Added a pnpm override pinning markdown-exit to the version this workspace depends on directly, so unplugin-vue-markdown's own transitive markdown-exit dependency converges on the same version instead of the lockfile shipping two copies of the engine.

markdown-it-link-attributes and the .md → Vue SFC compilation pipeline (unplugin-vue-markdown + @mdit-vue/*, which still depend on real markdown-it for frontmatter/component parsing) are unaffected — this only swaps the engine used for rendering runtime markdown strings (e.g. RPC docs/tooltips) in the devtools client.

Verification

• pnpm typecheck
• pnpm lint
• pnpm test:unit
• pnpm -C packages/devtools exec nuxi generate client (confirms the .md docs pipeline and the renamed vendor/markdown-exit chunk both build cleanly)

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This PR was created with the help of an agent.

[socket-security]

Review the following changes in direct dependencies. Learn more about Socket for GitHub.

Diff	Package	Supply Chain Security	Vulnerability	Quality	Maintenance	License
	markdown-exit@​1.1.0-beta.2

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[coderabbitai]

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ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

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Run ID: c478891c-8b27-44ae-bff5-35af397308df

📥 Commits

Reviewing files that changed from the base of the PR and between d85c2b3 and b407d53.

⛔ Files ignored due to path filters (1)

• pnpm-lock.yaml is excluded by !**/pnpm-lock.yaml

📒 Files selected for processing (5)

• package.json
• packages/devtools/client/composables/client-services/markdown.ts
• packages/devtools/client/nuxt.config.ts
• packages/devtools/package.json
• pnpm-workspace.yaml

💤 Files with no reviewable changes (1)

• package.json

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📝 Walkthrough

Walkthrough

The PR replaces markdown-it with markdown-exit. The Markdown service uses the MarkdownExit type and createMarkdownExit factory. The Nuxt bundle configuration includes markdown-exit. Workspace catalogs and package dependencies use version ^1.1.0-beta.2. The obsolete @types/markdown-it entries are removed.

Estimated code review effort: 2 (Simple) | ~10 minutes

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly and concisely describes the dependency migration from markdown-it to markdown-exit.
Description check	✅ Passed	The description accurately explains the dependency migration, runtime changes, preserved behavior, and verification steps.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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