itch.io

As far as I know, they have their own Discord server, but I don't know how to join it.

That sucks if so. But the game should still somehow explain what these effects are, at least when hovering over status icons in the UI — players shouldn't have to guess. 
Besides, the system descriptions and attack descriptions are directly copied from the rulebook, and that doesn't seem to be prohibited.

This is rarely a problem, but it will require a constant internet connection.

 You won't be able to play the game properly in offline mode on your laptop if you want to (because you're on the road or because you live in a place with communication issues).

I think it's much easier to simply add this page from COMP/CON to some directory in the menu, as the OP suggested. If the game isn't multiplayer, it shouldn't constantly depend on an internet connection. Status effects can be learned quickly, but still.

So basically you just want this COMP/CON page to be put into the game.

Sounds amazing! For me, this is the most anticipated release of the year

I saw a screenshot of the custom campaign editor's interface and was intrigued.

What will the narrative part of the game look like? Is it a text-based game, like the ones you see in Space Rangers or Pathfinder: Kingmaker, where the core gameplay can look completely different, but then there are these large segments entirely composed of text and dice rolls?
The interface resembles the Twine text-based game website — how similar is it to that? Will there be support for variables, pilot triggers, dice rolls, and the ability to track player choices, their mech build, and its condition?
How customizable are NPCs? Can they be assigned different behaviors (holding position, rushing, bodyguarding another NPC, change tactics on certain turn etc.)?

Or am I daydreaming too much?