Chat: inline LaTeX math (\( ... \)) renders as raw source instead of formatted math

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Summary

Inline LaTeX math in assistant chat messages does not render. Formulas written with \(...\) delimiters show up as raw TeX source (looking like (formula)) instead of formatted math.

Repro

1. Ask the assistant for math (e.g. a list of equations).
2. Assistant replies with Markdown containing inline math, e.g.:

- \(\cos(E_q(q), E_d(d))\)
- \(\log(1 + e^{s_{ik} - s_{ij}})\)
- \(A_t = \lambda_t A_t^{\text{local}} + (1-\lambda_t)A^{\text{global}}\)

3. In the chat UI, the formulas appear unrendered as plain text / parenthesized TeX, not as math.

Observed in dark-mode chat at ~12:09 AM; copy button and timestamp render fine — only math fails.

Expected

Inline and block math should render via KaTeX/MathJax (or equivalent), e.g. (\log(1 + e^{s_{ik} - s_{ij}})) as formatted math.

Actual

Raw LaTeX is shown in the message bubble. Example of what appears:

• (\cos(E_q(q), E_d(d)))
• (\log(1 + e^{s_{ik} - s_{ij}}))
• (A_t = \lambda_t A_t^{\text{local}} + (1-\lambda_t)A^{\text{global}})

Notes / related

Looks like the same class of bug as existing open issues; filing with a concrete chat repro:

• #6824 Chat doesn't render LaTeX math in assistant messages
• light mode #4 Math rendering (LaTeX/KaTeX)
• feat: Configurable keybindings #33 KaTeX math rendering
• Add configurable keybindings via ~/.t3/keybindings.json #52 [Bug]: Math/LaTeX formula rendering not working despite KaTeX being listed as dependency
• Feature/session handoff compaction #522 remend treats LaTeX \(...\) and \[...\] math as text when completing emphasis
• feat(sidebar): show update time instead of creation time #1089 Web 端消息里 LaTeX 公式不渲染

Happy to close as duplicate of #6824 / #52 if preferred — this report is mainly the concrete chat repro with \(...\) delimiters.

Environment

• App: t3code chat UI
• Theme: dark mode
• Content: assistant message with bulleted inline math