Add Crisp chat to docs

[imrishabh18]

Motivation

• Add Crisp live chat to the documentation site so visitors can contact support directly from docs pages.
• Load Crisp only on the client to avoid server-side rendering issues and prevent multiple script injections.
• Provide minimal TypeScript typings for the injected globals to avoid type errors.

Description

• Added CRISP_WEBSITE_ID and CRISP_SCRIPT_SRC constants and a global Window declaration in src/theme/Root.tsx.
• Added a client-only useEffect that initializes window.$crisp, sets window.CRISP_WEBSITE_ID, and appends the async Crisp loader script if it is not already present.
• Preserved existing sidebar mutation-observer logic and kept changes scoped to the Docusaurus root theme component (src/theme/Root.tsx).

Testing

• Ran bun run typecheck and it completed successfully.
• Ran bun run format:check src/theme/Root.tsx and no formatting fixes were required.
• Ran bun run build which produced a successful production build.

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Codex Task

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Project	Deployment	Actions	Updated (UTC)
docs	Ready	Preview, Comment	Jun 28, 2026 12:56pm

[tscircuitbot]

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Thank you for your contribution! 🎉

PR Rating: ⭐⭐
Impact: Minor

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