fix(ui): refresh LOCAL SYSTEM after a jump instead of waiting for a page reload (#30)

WorldMapPanel owns the world state and applied the /api/jump response
locally, so MissionControl's lifted /api/system state (LOCAL SYSTEM tab,
CARGO HOLD, SECTOR row) stayed on the previous system until a full refresh.
The panel now takes an onJumped callback that MissionControl wires to an
/api/system refetch after every successful jump.

package.json

@@ -1,6 +1,6 @@
 {
   "name": "space-wanderer",
-  "version": "0.9.6",
+  "version": "0.9.7",
   "private": true,
   "scripts": {
     "dev": "next dev -p 3000",