Tyler Slaton f85c1f8328 chore(showcase/langgraph-python): prune dead dependencies ...

The branch's iteration arc went through several headless-demo
implementations (CSS Modules, AI Elements, prompt-kit, shadcn) and a
streaming-markdown experiment with `streamdown`. After the spec
narrowed to shadcn-only and `react-markdown` for assistant rendering,
those component libraries and their satellite packages were left
installed but unused.

Removed (zero importers across `src/`):
- @copilotkit/react-ui (v1 UI; the showcase consumes /v2 hooks only)
- @rive-app/react-webgl2 (animations, never wired)
- @streamdown/cjk, /code, /math, /mermaid + streamdown (replaced by
  react-markdown for assistant content)
- @xyflow/react (graph viz, never wired)
- ai (Vercel AI SDK, was the AI Elements demo's transport)
- ansi-to-react (terminal output, never wired)
- marked (alternative markdown parser, never wired)
- media-chrome (media player UI, never wired)
- motion (animation library, was a prompt-kit demo dep)
- nanoid (we use crypto.randomUUID())
- react-jsx-parser (never wired)
- remark-breaks (markdown extension, never wired)
- shiki (syntax highlighting, never wired)
- tokenlens (never wired)
- use-stick-to-bottom (was an AI Elements dep)
- @radix-ui/react-use-controllable-state (no importers)

Kept everything actually imported: shadcn primitive surface intact
(class-variance-authority, cmdk, embla-carousel-react, lucide-react,
radix-ui umbrella + per-package @radix-ui/react-checkbox /
react-separator for beautiful-chat's local components), CopilotKit v2,
Hashbrown + json-render BYOC catalogs, recharts, react-markdown +
remark-gfm, openai (voice route), yaml (manifest parsing), zod.

Build still green at 54 routes. Lockfile updated. tsconfig.json
`jsx: "preserve"` — Next 15 reset this from `react-jsx` automatically
on build.

2026-05-06 23:32:47 -07:00

1.5 KiB

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