feat: initial steps towards an independent worldState

- BuildLabel is automatically populated from config
- News is replaced
- Removed contemporary stuff (thermia fractures, flash sales)
- "Expiry" fields extended comfortably into the future (closes #197)

A lot of stuff that could still be done in this area, but you gotta start somewhere.

src/controllers/dynamic/worldStateController.ts

@@ -1,10 +1,13 @@
 import { RequestHandler } from "express";
 import worldState from "@/static/fixed_responses/worldState.json";
+import config from "@/config.json";
 
 const worldStateController: RequestHandler = (_req, res) => {
-    const state = worldState;
-    state.Time = Math.round(Date.now() / 1000);
-    res.json(state);
+    res.json({
+        ...worldState,
+        BuildLabel: config.buildLabel,
+        Time: Math.round(Date.now() / 1000)
+    });
 };
 
 export { worldStateController };