fix: allocate share-link layer tokens without collisions

src/data/layerStateTokenReservations.json

@@ -0,0 +1,30 @@
+[
+  ["ais-live-vessels", "a"],
+  ["alpr-cameras", "p"],
+  ["bhote-koshi-2026", "h"],
+  ["bhote-koshi-locator", "z"],
+  ["bikeshare", "b"],
+  ["cctv", "c"],
+  ["directions", "n"],
+  ["earthquakes", "e"],
+  ["fire-perimeters", "2"],
+  ["flights", "f"],
+  ["local-dams", "q"],
+  ["local-datacenters", "d"],
+  ["local-firms", "w"],
+  ["military", "m"],
+  ["military-awareness", "g"],
+  ["military-installations", "i"],
+  ["radio", "r"],
+  ["recent-imagery", "1"],
+  ["rocket-launches", "x"],
+  ["satellites", "s"],
+  ["telegeography-submarine-cables", "u"],
+  ["traffic", "t"],
+  ["transit", "j"],
+  ["weather-cyclones", "y"],
+  ["weather-lightning", "l"],
+  ["weather-radar", "v"],
+  ["weather-satellite", "o"],
+  ["wind", "k"]
+]