Autolinked URLs include trailing parentheses/text in the clickable link

Description

When a plain URL is returned in a message, the automatic link detection (linkification) greedily swallows trailing text, so punctuation that follows the URL becomes part of the clickable link.

For example, the following output:

本地测试版已启动: http://127.0.0.1:4173/ (构建产物已生成, HTTP 200)。

renders with the entire http://127.0.0.1:4173/ (构建产物已生成, HTTP 200) — including the trailing bracket and the sentence after it — as a single clickable link. Only the bare URL should be marked as a link:

本地测试版已启动: http://127.0.0.1:4173/ (构建产物已生成, HTTP 200)。
                            ^^^^^^^^^^^^^^^^^^^^^^ only this part

Steps to reproduce

1. Have the assistant (or a build/tool output) return a URL immediately followed by text in parentheses, e.g. http://127.0.0.1:4173/ (some note).
2. Observe the rendered message.

Expected behavior

Linkification should stop at the end of the URL and exclude trailing punctuation/whitespace, i.e. only http://127.0.0.1:4173/ becomes a link. This matches common autolink behavior (e.g. GitHub, GFM), where trailing ), ., ,, 。, etc. are excluded from the link.

Actual behavior

The trailing ( ... ) text, and everything up to the closing bracket, is included inside the clickable link.

Environment

• opencode version: txds/deepseek-v4.1-flash build shown in the screenshot
• OS: macOS (darwin)

No file or test is identified in the issue. Locate the message linkification implementation and its URL-parsing tests, then reproduce the parenthesized-text example; done means only the bare URL is clickable while trailing punctuation and text remain outside the link.