feat: validate expanded resource discovery

docs/LEARNING_ROADMAP.md

@@ -652,11 +652,12 @@ Completed after the architecture gate:
 
 The practical next sequence is:
 
-1. Expand resource discovery with many finite `ResourceNode` instances placed
-   in meaningful foliage, animal-camp, berry, and village-stockpile contexts.
-   The first distance/safety/comfort scoring pass and small authored resource
-   spread exist; next, validate placement rules and grow the authored set
-   carefully rather than reintroducing abstract resource zones.
+1. Continue growing resource discovery with finite `ResourceNode` instances
+   placed in meaningful foliage, animal-camp, berry, and village-stockpile
+   contexts. The first distance/safety/comfort scoring pass, twelve authored
+   resources, and placement validation exist; next additions should increase
+   authored variety only when they preserve reachability, stable IDs, scoring
+   metadata, and clear player interaction ranges.
 2. Expand persistence only when schedules, player state, or a real save menu
    creates a concrete requirement.
 

docs/RESOURCE_NODE_MIGRATION.md

@@ -550,6 +550,12 @@ profession, and NPC comfort range. The first scoring pass stores
 `safety_risk`, `comfort_distance`, and `discovery_priority` on resource state
 and uses them when selecting NPC resource targets.
 
+The first validated spread contains twelve finite resources: berry bushes and
+patches, animal camps, trees, and one village woodpile. Placement is guarded by
+headless tests for stable IDs, food/wood coverage, semantic contexts,
+discovery metadata, navigation reachability, and non-overlapping pantry/player
+interaction range.
+
 ## Test scenarios
 
 At minimum, exercise: