Using with Angular 17 SSR -> document is not defined on initializeAppCheck

先阅读 docs/app-check.md，并跟踪 @angular/fire/fesm2022/angular-fire.mjs 中显示的 initializeAppCheck 调用，同时检查报告的 Firebase App Check 堆栈跟踪中的 document 访问。完成的标准是 Angular SSR 和预渲染能够在没有 document 错误的情况下完成，同时浏览器中的 App Check 继续初始化。

Version info

Angular:
17.0.8

Firebase:
10.7.1

AngularFire:
17.0.0

Other (e.g. Ionic/Cordova, Node, browser, operating system):
Node 18, Ionic 7, MacOS

How to reproduce these conditions

Steps to set up and reproduce

1. New Angular 17 project
2. ng add @angular/fire@17
3. ng add @angular/ssr
4. Set up App Check as per https://github.com/angular/angularfire/blob/master/docs/app-check.md
5. ng build

Debug output

⠇ Building...
ReferenceError: document is not defined
    at makeDiv (/app/.angular/prerender-root/node_modules/@firebase/app-check/dist/esm/index.esm2017.js:1119:26)
    at initializeV3 (/app/.angular/prerender-root/node_modules/@firebase/app-check/dist/esm/index.esm2017.js:1064:19)
    at _ReCaptchaV3Provider.initialize (/app/.angular/prerender-root/node_modules/@firebase/app-check/dist/esm/index.esm2017.js:1255:9)
    at _activate (/app/.angular/prerender-root/node_modules/@firebase/app-check/dist/esm/index.esm2017.js:1543:20)
    at initializeAppCheck (/app/.angular/prerender-root/node_modules/@firebase/app-check/dist/esm/index.esm2017.js:1498:5)
    at <anonymous> (app/.angular/prerender-root/c56c3be0-e454-4b23-bf7d-d028ecf276ec/node_modules/@angular/fire/fesm2022/angular-fire.mjs:216:44)
    at <anonymous> (/app/.angular/prerender-root/c56c3be0-e454-4b23-bf7d-d028ecf276ec/node_modules/@angular/fire/fesm2022/angular-fire.mjs:148:57)
    at _ZoneDelegate.invoke (/app/.angular/prerender-root/node_modules/zone.js/fesm2015/zone.js:368:26)
    at _Zone.run (/app/.angular/prerender-root/node_modules/zone.js/fesm2015/zone.js:129:43)
    at _NgZone.runOutsideAngular (/app/.angular/prerender-root/node_modules/@angular/core/fesm2022/core.mjs:1461
An unhandled exception occurred: document is not defined

Expected behavior

AngularFire should check if rendering on a browser before calling App Check code and RecaptchaV3 (which relies on document being available)

Actual behavior

No check is done, so when providing App Check, this above error occurs as soon as pre-rendering on the server happens and document is accessed but isn't available due to not running in a browser