Capture current mission, AI, map and administration development

Include the current addon, terrain integrations, tools, regression tests and recorded development evidence.

docs/evidence/chat-ownership-2026-10-02/map-compatibility-review.txt

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+Read-only map review: no proposed source patch is approved or applied.
+The scratch DiscoveryMap.c override was abandoned after SDK review; do not integrate it.
+
+Concrete compatibility boundary:
+/tmp/erri-vanilla-stock/scripts/Game/Map/Markers/SCR_MapMarkerManagerComponent.c:646-664 checks UGC privilege/restrictions for every static and disabled marker on map open. There is no exemption for local, owner=-1 or server marker. Lines417-444 hide blocked entries.
+Current ERR_DiscoveryMarker uses this registry, so authored discovered sites/mine warnings are subject to that native filter. No restricted-platform native test was run.
+Vanilla tasks use a separate SCR_TaskMapUIComponent : SCR_MapUIElement in scripts/Game/UI/Tasks/SCR_TaskMapUIComponent.c:1,46,109-116. It reads TaskSystem.GetTaskLocation and is not a static marker list entry. An objective-map-element migration is the supported architecture to investigate; changing platform filtering is not recommended.
+
+Content origins checked:
+SiteService configures Location.Label from authored SiteDefinition.Label; TerrainSites supplies fixed labels; DiscoveryMap chooses fixed rough/default strings or that authored Label/Id. MineIntel uses a constant historical warning. No current player name/chat input reaches these marker text calls. Third-party scenario definitions can provide authored labels.
+
+Two focused programs passed current target:
+- test_shared_map_ownership.py: actual owned map/config/root callbacks and cleanup.
+- test_discovery_map_position.py: actual stable rough coordinates versus exact discovered points.
+Native reopen/JIP and restricted-platform presentation are not qualified by these checks.
+No target/native/UI/commit actions performed.