fixed tui streaming

[bmdavis419]

Greptile Overview

Greptile Summary

Fixed TUI streaming by replacing custom Shiki-based markdown renderer with OpenTUI's native markdown component and upgrading to @opentui 0.1.77. The core streaming issue was resolved by properly using the ReadableStream reader API with explicit lock management in stream.ts. Additionally, improved web app performance by implementing thread preloading on sidebar hover/focus.

Key changes:

• Replaced 359-line custom markdown renderer with OpenTUI's built-in markdown support
• Fixed SSE stream reader to use explicit getReader() with proper lock release
• Refactored message rendering to use Index instead of For for better reactivity during streaming
• Added tree-sitter parser configuration for 8 languages (JSON, HTML, CSS, Python, Rust, Go, YAML, Bash)
• Implemented thread preloading with 2-minute cache TTL in web app
• Added delayed loading spinner (200ms) for better perceived performance

Note: 2.0-final-launch-commands.md is a plan file committed to the repository.

Confidence Score: 5/5

• This PR is safe to merge with minimal risk
• All changes are well-structured refactors that improve streaming functionality by leveraging native OpenTUI capabilities. The streaming fix properly handles ReadableStream API with lock management, the markdown rendering migration simplifies the codebase significantly (-359 lines), and the web performance improvements use standard caching patterns. No breaking changes or security concerns detected.
• No files require special attention

Important Files Changed

Filename	Overview
2.0-final-launch-commands.md	Added planning document describing CLI commands for 2.0 launch
apps/cli/src/client/stream.ts	Fixed SSE stream parsing by using explicit reader with proper lock management
apps/cli/src/tui/components/markdown-text.tsx	Replaced custom shiki-based renderer with OpenTUI's native markdown component for streaming support
apps/cli/src/tui/components/messages.tsx	Refactored to use Index instead of For for better reactivity, fixed streaming state tracking by chunk ID
apps/web/src/lib/components/Sidebar.svelte	Added thread preloading on hover/focus to improve navigation performance
apps/web/src/routes/app/chat/[id]/+page.svelte	Integrated thread preload store and added delayed loading spinner (200ms) for better UX

[bmdavis419]

• added minimax provider #178
• fixed tui streaming #177 👈 (View in Graphite)
• main

This stack of pull requests is managed by Graphite. Learn more about stacking.

[bmdavis419]

Merge activity

• Feb 9, 11:29 PM UTC: A user started a stack merge that includes this pull request via Graphite.
• Feb 9, 11:30 PM UTC: @bmdavis419 merged this pull request with Graphite.