[Bug] INVALID_APP_ID error on Android

### What is your question?

I'm troubleshooting what is likely a configuration error on my end, but I'm having trouble narrowing down the problem due to a vague error message.

Our build fails to login with the error `An internal error has occurred. [ INVALID_APP_ID ]`. Frustratingly this is only occurring when the game is built in our production pipeline, so I don't have a full call stack.

I can't find any documentation that specifies what app id the error is referring to (e.g. is it the mobile bundle id, the Firebase app id, or something else) other than [this page](https://firebase.google.com/docs/reference/js/auth#autherrorcodes) which simply has `INVALID_APP_ID`'s string value. [This page](https://firebase.google.com/docs/auth/ios/errors) has a list of helpful descriptions of exceptions, but I'm not sure which one this error maps to, if any.

Can someone provide some additional info on why the `INVALID_APP_ID` error occurs, and what might be some things to look into?

### Firebase Unity SDK Version

11.7.0

### Unity editor version

2022.3.10

### Installation Method

.unitypackage

### Problematic Firebase Component(s)

Authentication

### Other Firebase Component(s) in use

Authentication

### Additional SDKs you are using

_No response_

### Targeted Platform(s)

Android

### Unity editor platform

Windows

### Scripting Runtime

IL2CPP

### Release Distribution Type

Pre-built SDK from https://firebase.google.com/download/unity

Start by reproducing the login failure in the production Android build using Firebase Unity SDK 11.7.0, Unity 2022.3.10, IL2CPP, and the pre-built SDK. Compare the configured mobile bundle ID, Firebase app ID, and other production configuration values, then consult the linked Firebase error references. Done means the INVALID_APP_ID cause is identified and its relevant configuration or troubleshooting guidance is documented.

Written by the indexing model from the issue text.