[FEAT] Add default Analog SERVER_CONTEXT for SSR/SSG/any

[Yberion]

Which scope/s are relevant/related to the feature request?

Don't known / other

Information

Hello,

It would be nice if there would be a default SERVER_CONTEXT set by Analog (same as Angular Universal) when using SSR/SSG or any other server side stuff.

• analog-ssr
• analog-ssg
• ...

Describe any alternatives/workarounds you're currently using

Actually what you pointed me out in our Discord discussion: https://github.com/analogjs/analog/blob/main/apps/analog-app/src/main.server.ts#L23

I would be willing to submit a PR to fix this issue

• [X] Yes
• [ ] No

[brandonroberts]

Closing in favor of #327