Merge main into feat/shipwrecks; move shipwrecks to token 00

Main's wildlife-sightings layer took share-link token 9, so shipwrecks
takes the next free token, 00. Locale, docs, format-scope and voice
manifest conflicts keep both sides. Ledger and registry tests now model
the ledger before shipwrecks took 00, and layer counts include both
new layers.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

src/data/layerStateTokenReservations.json

@@ -24,7 +24,7 @@
   ["s2-ghostmaps", "5"],
   ["satellites", "s"],
   ["sea-marks", "6"],
-  ["shipwrecks", "9"],
+  ["shipwrecks", "00"],
   ["ski-pistes", "7"],
   ["street-level", "0"],
   ["telegeography-submarine-cables", "u"],
@@ -34,5 +34,6 @@
   ["weather-lightning", "l"],
   ["weather-radar", "v"],
   ["weather-satellite", "o"],
+  ["wildlife-sightings", "9"],
   ["wind", "k"]
 ]