feat: add witnessed knowledge and wind ambience

docs/LEARNING_ROADMAP.md

@@ -630,8 +630,6 @@ Completed foundations:
 - 512 m Jajce Terrain3D seed, greybox landmarks, stable-ID resource placement,
   lookdev scene, and tested temporary navigation loop.
 
-The practical next sequence is:
-
 Completed after the architecture gate:
 
 - location-based pantry state, NPC-carried food, and explicit
@@ -649,13 +647,37 @@ Completed after the architecture gate:
 - definition-driven profession colors/props and a selected-NPC inspector fed
   by real decision branches, destinations, needs, and utility scores.
 
-The practical next sequence is:
+The first relationship consequence slice is complete:
 
-1. Grow the existing familiarity seed into one consequence-bearing relationship
-   dimension, such as trust or obligation, driven by structured events rather
-   than proximity alone.
-2. Use that dimension in one real choice or response, then expose the cause in
-   the NPC inspector before expanding the relationship graph.
+- directed familiarity/trust records now live in a top-level relationship
+  graph instead of NPC-local dictionaries;
+- a successful known food-deposit event raises a hungry familiar NPC's trust
+  and is retained as the exact causal event ID;
+- that trust can redirect ordinary patrol work toward replenishing a low pantry
+  for a starving acquaintance;
+- the inspector displays the relationship values and completed event cause;
+- schema migration, save/restore checksums, idempotence, and a neutral-control
+  decision test cover the complete slice.
+
+The first witnessed-knowledge slice is also complete:
+
+- `KnownEventStateRecord` keeps per-NPC event references separate from
+  objective event history;
+- successful food deposits are known by their actor and nearby living NPCs at
+  event-record time, while distant NPCs remain uninformed;
+- two equally familiar guards with different evidence now gain different trust
+  and choose helping versus ordinary patrol;
+- the inspector resolves and displays the selected NPC's latest known fact;
+- schema v5 migration, invalid-reference rejection, deterministic save/load,
+  and proximity/idempotence tests cover the complete slice.
+
+This proves the first Milestone 6 evidence-to-choice exit path without claiming
+full memory or belief simulation. The practical next sequence is:
+
+1. Add acquisition provenance and one bounded NPC-to-NPC fact transfer so
+   information can travel beyond direct witnesses without replaying events.
+2. Add importance/retention rules for known facts before expanding into
+   distortion, secrecy, rumours, or opportunity generation.
 
 Recently completed: