--ui --standalone doesn't show a list of tests until one is run

[KaelWD]

Describe the bug

• Run vitest watch --ui --standalone
• The UI opens with an empty list
• Cause a test to run either by editing it or adding a filter in the terminal
• All the other test files will appear in the UI

Reproduction

I are absolutely sure that the issue is obvious.

System Info

System:
    OS: Linux 5.15 Ubuntu 22.04.4 LTS 22.04.4 LTS (Jammy Jellyfish)
    CPU: (12) x64 AMD Ryzen 5 3600 6-Core Processor
    Memory: 14.88 GB / 31.26 GB
    Container: Yes
    Shell: 5.8.1 - /usr/bin/zsh
  Binaries:
    Node: 22.6.0 - ~/.nvm/versions/node/v22.6.0/bin/node
    npm: 10.8.2 - ~/.nvm/versions/node/v22.6.0/bin/npm
  Browsers:
    Chrome: 128.0.6613.119
    Firefox: 130.0

Used Package Manager

pnpm

Validations

• Follow our Code of Conduct
• Read the Contributing Guidelines.
• Read the docs.
• Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
• Check that this is a concrete bug. For Q&A open a GitHub Discussion or join our Discord Chat Server.
• The provided reproduction is a minimal reproducible example of the bug.

[hi-ogawa]

It looks like it was working on v1 (though rerun looks odd as it keeps "SKIP" entries):

https://stackblitz.com/edit/vitest-dev-vitest-tnyyrm?file=package.json

screenshot

It might be realted to UI rework done by #5907