What changed

Bug fix

• Warp button appears for sector 0 routes — Sector 0 (FedSpace Alpha) is a real transit sector connected to the StarDock at sector 13. Previously, if your plotted route’s next hop was sector 0, the Route Overlay would show ”⚠ Route state out of sync” instead of the ”🚀 Warp” button.
• Plot Course modal also fixed — The same falsy-value handling could hide warp controls in the Plot Course modal when routing through sector 0.
• Sector 0 is now accepted as a destination — The Plot Course input, scanner selection, and ?plotCourse=0 query path no longer reject sector 0 as an invalid target.
• Danger info for sector 0 neighbors — The batch danger endpoint no longer drops sector 0 from neighbor threat previews.

What was wrong

Several UI paths treated the sector ID as a boolean or required it to be greater than zero. Because JavaScript considers 0 falsy, a perfectly valid route through (or to) sector 0 was falling into error branches.

What this means for play

• Routes that pass through or end at FedSpace Alpha now work like any other route.
• You no longer need to manually warp to sector 0 and re-plot your destination.