docs: mark Jajce scaffold proof complete

docs/RESOURCE_NODE_MIGRATION.md

@@ -9,7 +9,7 @@
 | **3** | Authoritative extraction on completion | ✅ Complete |
 | **4a** | Wood target selection (NPC) | ✅ Complete |
 | **4b** | Player parity (extraction contract) | ✅ Complete |
-| **5** | Jajce world placement | ❌ Not started |
+| **5** | Jajce world placement | 🔶 Scaffold/navigation proof complete |
 | **6** | Remove remaining zone model | ❌ Not started |
 
 ### Key divergences from the original plan
@@ -485,6 +485,11 @@ baseline.
 - use the old task zones only for rest, eat, patrol, and study;
 - verify target discovery does not rely on parent scene paths.
 
+**Progress:** `556d0fd` adds the standalone Jajce scaffold, four stable-ID
+resources, dedicated Terrain3D seed data, remaining activity markers, and 24
+headless navigation-route checks. Runtime `main.tscn` migration is intentionally
+deferred until after the architecture gate, so this phase is not yet complete.
+
 **Exit:** the existing food and wood loops work after moving from the flat map
 to Terrain3D.
 
@@ -558,7 +563,7 @@ resource conservation through debug presentation.
 | 10 | Add navigation failure handling (replaces regression scenarios) | ✅ Done | `b8752f8` |
 | 11 | Migrate wood | ✅ Done | `c6033b6`, `8049c52` |
 | 12 | Give the player the same extraction path | ✅ Done | `326df51` |
-| 13 | Continue with the Jajce world scaffold | ❌ Not started | — |
+| 13 | Continue with the Jajce world scaffold | 🔶 Placement proof done; runtime migration pending | `556d0fd` |
 
 ## Definition of done for the first migration