Mixed output causes httpie to preprocess it incorrectly

首先，针对一个标记为 text/html、其中包含 JSON 和 escaped HTML 的响应，分别运行提供的 HTTPie 命令（带有和不带 | cat 管道）。跟踪响应的渲染行为，然后验证类似 JSON 的内容不会被自动美化格式化，并且字符会保持 escaped，而不是被当作 HTML 处理。

Checklist

• I've searched for similar issues.
• I'm using the latest version of HTTPie.

Minimal reproduction code and steps

1. Create a request to a service that returns mime type text/html with json body and escaped html inside a string
2. Observe the HTML getting highlighted and characters converted to their unescaped versions
3. Compare with piping to cat to remove preprocessing, where the characters are left as they are

Current result

For example, proxy dns.google but set it's return content-type to text/html (proxy_pass https://dns.google; add_header Content-Type text/html always; in nginx).

http "http://localhost/resolve?name=example.com%3Cscript%3Ealert(1)%3C%2Fscript%3E" -v | cat
GET /resolve?name=example.com%3Cscript%3Ealert(1)%3C%2Fscript%3E HTTP/1.1
Accept-Encoding: gzip, deflate, br
Accept: */*
Connection: keep-alive
User-Agent: HTTPie/3.2.4
Host: dns.google

HTTP/1.1 200 OK
X-Content-Type-Options: nosniff
Strict-Transport-Security: max-age=31536000; includeSubDomains; preload
Access-Control-Allow-Origin: *
Date: Sat, 08 Mar 2025 11:22:11 GMT
Expires: Sat, 08 Mar 2025 11:22:11 GMT
Cache-Control: private, max-age=86399
Content-Type: text/html; charset=UTF-8
Content-Encoding: gzip
Server: HTTP server (unknown)
X-XSS-Protection: 0
X-Frame-Options: SAMEORIGIN
Alt-Svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
Transfer-Encoding: chunked

{"Status":3,"TC":false,"RD":true,"RA":true,"AD":true,"CD":false,"Question":[{"name":"example.com\u003cscript\u003ealert(1)\u003c/script\u003e.","type":1}],"Authority":[{"name":".","type":6,"TTL":86399,"data":"a.root-servers.net. nstld.verisign-grs.com. 2025030800 1800 900 604800 86400"}]}

is the raw code, but without |cat gets rendered as

{
    "AD": true,
    "Authority": [
        {
            "TTL": 86397,
            "data": "a.root-servers.net. nstld.verisign-grs.com. 2025030800 1800 900 604800 86400",
            "name": ".",
            "type": 6
        }
    ],
    "CD": false,
    "Question": [
        {
            "name": "example.com<script>alert(1)</script>.",
            "type": 1
        }
    ],
    "RA": true,
    "RD": true,
    "Status": 3,
    "TC": false
}

which is incorrect and can be confusing

Expected result

Same as |cat output as there's no real HTML to prettify

Additional information, screenshots, or code examples