Cannot warp to a sector while another fleet is subwarping through it

Players cannot initiate a warp to a sector if any other fleet is currently subwarping through that sector. The warp option becomes available again only after the other fleet clears the sector, forcing players to wait and blocking normal navigation. Report notes this is related to BUG-023 (moving fleets blocking interactions) but specifically at the warp/sector level.

1. Open the map and select a sector as the warp destination.
2. Ensure another fleet (any player/NPC) is currently subwarping through the destination sector.
3. Attempt to initiate warp to that sector.
4. Wait until the subwarping fleet exits/clears the sector and try warping again.

Warp to the selected sector should be available regardless of other fleets subwarping through it (other fleets should not block sector-level warp interactions).

### BUG-030 — Can't Warp to Sector While Another Fleet is Subwarping Through It
Season 1 | Chapter 2v1.2.25


- **Issue:** Cannot initiate warp to a sector if another fleet is subwarping through it. Warp available again once fleet clears. Confirmed by Jindo.
- **Priority:** Medium
- **Impact:** Blocks player warp navigation, forces waiting for other fleets to clear
- **Notes:** Related to BUG-023 — same family (moving fleets blocking interactions) but at warp/sector level.