Refine anchor-first universe migration docs

docs/DATA-MODEL.md

@@ -40,7 +40,6 @@ Recommended global ID families:
 - `commanderId`
 - `systemId`
 - `anchorId`
-- `localspaceId`
 - `stationId`
 - `shipId`
 - `moduleId`
@@ -59,15 +58,14 @@ The intended core entities are:
 2. `Commander`
 3. `System`
 4. `Anchor`
-5. `Localspace`
-6. `Station`
-7. `Ship`
-8. `ModuleInstance`
-9. `Claim`
-10. `ConstructionSite`
-11. `MarketOrder`
-12. `Recipe`
-13. `PolicySet`
+5. `Station`
+6. `Ship`
+7. `ModuleInstance`
+8. `Claim`
+9. `ConstructionSite`
+10. `MarketOrder`
+11. `Recipe`
+12. `PolicySet`
 
 ## Faction
 
@@ -120,12 +118,12 @@ Suggested fields:
 - `label`
 - `galaxyPosition`
 - `star definition`
-- `nodeIds`
+- `anchorIds`
 - `faction influence later`
 
 ## Anchor
 
-An anchor is a meaningful location in a system that owns a localspace.
+An anchor is a meaningful location in a system.
 
 Suggested fields:
 
@@ -133,7 +131,7 @@ Suggested fields:
 - `systemId`
 - `kind`
 - `systemPosition`
-- `localspaceId`
+- `localspaceRadius`
 - `parentAnchorId?`
 - `orbital metadata?`
 - `constructionIds?`
@@ -146,25 +144,9 @@ Recommended anchor kinds:
 - `lagrange-point`
 - `resource-node`
 
-## Localspace
-
-A localspace is the tactical simulation context attached to one anchor.
-
-Suggested fields:
-
-- `localspaceId`
-- `anchorId`
-- `systemId`
-- `radius`
-- `occupantShipIds`
-- `occupantStationIds`
-- `occupantClaimIds`
-- `occupantConstructionSiteIds`
-- `serverAuthorityId later`
-
 ## Station
 
-A station is a constructed structure that lives inside one localspace.
+A station is a constructed structure that lives at one anchor.
 
 Suggested fields:
 
@@ -173,7 +155,6 @@ Suggested fields:
 - `commanderId?`
 - `anchorId`
 - `systemId`
-- `localspaceId`
 - `moduleIds`
 - `inventory`
 - `population`
@@ -236,7 +217,6 @@ Suggested fields:
 - `commanderId?`
 - `systemId`
 - `anchorId`
-- `localspaceId`
 - `placedAt`
 - `activatesAt`
 - `state`
@@ -258,7 +238,6 @@ Suggested fields:
 - `constructionSiteId`
 - `ownerFactionId`
 - `anchorId`
-- `localspaceId`
 - `targetKind`
 - `targetDefinitionId`
 - `requiredItems`
@@ -351,7 +330,6 @@ Recommended ship spatial state fields:
 - `spaceLayer`
 - `currentSystemId`
 - `currentAnchorId?`
-- `currentLocalspaceId?`
 - `localPosition?`
 - `systemPosition?`
 - `movementRegime`