docs: Add Kapa custom chat support handoff

[dannyneira]

Summary

• Custom Kapa chat - Replaces the stock launcher with a Warp-styled chat panel that supports streaming answers, citations, conversation reset, responsive layouts, keyboard navigation, and accessible status messaging.
• Support handoff - Lets users send the current conversation to Warp Support through a protected server-side endpoint, with transcript context and clear success and error states.
• Security and deployment - Adds strict origin checks, Turnstile validation, request limits, payload bounds, required shared-secret forwarding, environment documentation, CSP updates, and Vercel routing configuration.
• Markdown images and lightbox - Renders images returned in Kapa answers and adds one shared, full-viewport lightbox for chat and documentation images. Users can close it with the visible close button, Esc, or any empty backdrop area, and focus returns to the originating image.
• Connect with MCP - Adds a Warp-specific popover with copy-only actions for the Warp MCP configuration and MCP URL. The endpoint is never rendered as a clickable or auto-linked URL.
• Documentation updates - Refreshes the relevant session-sharing, model-choice, privacy, and secret-redaction content for the new experience.

Validation

• npm run typecheck - Passed with 0 errors.
• npm run build - Passed.
• Internal link check - Passed: 363 files scanned, 3,490 links checked, 0 broken.
• Targeted Trunk checks - Passed.
• GitHub checks - 8 passed, 0 pending, 0 failed.

Preview

• Vercel preview

Co-Authored-By: Warp Agent agent@warp.dev

Warp artifacts

• Implementation conversation

[vercel]

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Project	Deployment	Actions	Updated (UTC)
docs	Ready	Preview	Aug 13, 2026 10:30pm