Each overlay is now its own Infrastructure row instead of a chip on one
shared row: sea-marks (token 6) and ski-pistes (token 7), both
enabled-only, built by createOsmOverlayLayers() from one descriptor
list. Drops the option group and its share-codec defaults, gives each
layer its own name, voice entry and CURRENT-STATE row, and shifts the
token-ledger fixtures to the next free digit 8.
Main moved on since this PR opened; the overlay layer is ported to the
current contracts:
- Layer-state token 6 (j belongs to transit; new single-character
tokens are digits) with a reservation-ledger row, and the option owner
renamed to the layer id so the compact share codec can encode it.
- Constructed per catalog by createOsmOverlaysLayer() in
constructCatalog.js; src/standalone/data.js no longer registers layers.
- Drapes through maps/imageryHost.js, so the overlays show on Google 3D
(tileset imagery) as well as the globe stacks, and follow map-stack
switches. Imagery layers are created on enable and destroyed on
disable/destroy.
- Translated chip labels and layer name in every locale, LAYER_NAME_KEYS,
Infrastructure panel group, voice manifest entry.
- Attribution: OpenSeaMap tiles CC BY-SA 2.0, OpenSnowMap credit as
required, OSM ODbL credit for both; bulk-download note in DATA_SOURCES.
- CURRENT-STATE row, changelog fragment, share-codec absent defaults,
updated token-ledger fixtures and voice schema pins.