broken css url when used "asset" rule type

[megastels]

Link to the code that reproduces this issue

https://codesandbox.io/p/devbox/dark-snow-hcjkjk?workspaceId=ws_NqRDDqBfUUDAADRYf9SdN9&embed=1&file=%2Fnext.config.ts

To Reproduce

1. npm install
2. npm run dev
3. Go to http://localhost:3000
4. enable/disable rule for svg inside next.config.ts to see bug

// app/style.css
.bg{
  // should correct load image
  background: url("./img.svg");
}

Current vs. Expected behavior

Expected behavior

.bg {
  background: url("../media/img.8569dc29.svg");
}

Current behavior

.bg {
  background: url("./img.svg");
}

without rule for svg it works correct

Provide environment information

Operating System:
  Platform: linux
  Arch: x64
  Version: #1 SMP PREEMPT_DYNAMIC Sun Aug  6 20:05:33 UTC 2023
  Available memory (MB): 4102
  Available CPU cores: 2
Binaries:
  Node: 20.12.1
  npm: 10.5.0
  Yarn: 1.22.19
  pnpm: 8.15.6
Relevant Packages:
  next: 16.2.0-canary.35 // Latest available version is detected (16.2.0-canary.35).
  eslint-config-next: N/A
  react: 19.2.4
  react-dom: 19.2.4
  typescript: 5.9.3
Next.js Config:
  output: N/A

Which area(s) are affected? (Select all that apply)

CSS

Which stage(s) are affected? (Select all that apply)

next dev (local)

Additional context

Related PR
#88788