`defineProps` & `ref` types mismatch

[lukemovement]

Vue version

3.5.16

Link to minimal reproduction

https://play.vuejs.org/#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

Steps to reproduce

Use a class with a private or protected property as the Type to be passed through a components props (E.g. defineProps). An error will appear in the parent component.

What is expected?

An error should not appear when passing the correct type to the child component.

What is actually happening?

The defineProps method exposes the private and protected properties. This needs to be consistent with the behaviour of the ref method to prevent a mismatch with the types.

System Info

System:
    OS: Linux 6.8 Ubuntu 22.04.5 LTS 22.04.5 LTS (Jammy Jellyfish)
    CPU: (16) x64 11th Gen Intel(R) Core(TM) i7-11800H @ 2.30GHz
    Memory: 4.54 GB / 15.36 GB
    Container: Yes
    Shell: 5.1.16 - /bin/bash
  Binaries:
    Node: 22.14.0 - ~/.nvm/versions/node/v22.14.0/bin/node
    Yarn: 4.7.0 - ~/Repositories/workspace/node_modules/.bin/yarn
    npm: 10.9.2 - ~/.nvm/versions/node/v22.14.0/bin/npm
  Browsers:
    Chrome: 136.0.7103.113

Any additional comments?

No response