docs: capture the embodied player citizen slices in plans and schema

docs/ARCHITECTURE_OVERVIEW.md

@@ -23,6 +23,7 @@ SimulationClock
         -> VillageOpportunitySystem projects one known unresolved need
         -> PlayerQuestSystem turns open needs into named player quests and
            grants Standing as the player resolves them through real supply/feed
+        -> PlayerNeedsSystem advances the player's hunger, energy, and carry
     -> WorldViewManager presents travel, NPC state, and world-state cues
         -> ActiveWorldAdapter supplies loaded-world positions/capacity
             -> LoadedResourceSpatialIndex bounds finite-anchor discovery
@@ -75,6 +76,13 @@ would otherwise obscure that lifecycle:
   gratitude; a requester who personally trusts the player can ask them directly
   even when another capable helper exists. Quests, Standing, and gratitude are
   persisted and never become quest-only simulation state;
+- `simulation/quests/PlayerNeedsSystem.gd` owns the player's embodied hunger,
+  energy, starvation, death, and carried inventory, advancing on the
+  deterministic tick and mutating finite resources and storage only through the
+  ordinary economy and recorder;
+- `simulation/quests/PlayerNegotiationSystem.gd` owns the read-only villager
+  talk surface plus accept/decline of personal requests, delegating quest
+  lifecycle to `PlayerQuestSystem`;
 - `simulation/persistence/` owns save-slot file safety;
 - `simulation/state/` owns versioned serialized record contracts;
 - `simulation/definitions/` owns stable IDs and immutable action/profession