feat(simulation): movement profile per archetype and sprint interaction suppression (#418, #419)

Add MovementProfile component with per-archetype default stances (D-053).
Sprint stance now explicitly clears the interaction buffer — no verbs
computed or sent during sprint (D-055). Anomaly monologue pipeline is
unaffected (handled by separate system).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

server/src/simulation/stance.rs

@@ -12,6 +12,43 @@ use bevy_ecs::prelude::*;
 
 use crate::bridge::types::MovementStance;
 
+/// Per-archetype default movement configuration (D-053).
+/// Stores the default stance so spawn code can initialize Stance from it.
+///
+/// v0.1: smuggler and detective both default to Walk.
+/// Future archetypes may differ (e.g., maintenance worker → Careful).
+#[derive(Component, Debug, Clone, Copy, PartialEq, Eq)]
+pub struct MovementProfile {
+    pub default_stance: MovementStance,
+}
+
+impl Default for MovementProfile {
+    fn default() -> Self {
+        Self {
+            default_stance: MovementStance::Walk,
+        }
+    }
+}
+
+impl MovementProfile {
+    pub fn smuggler() -> Self {
+        Self {
+            default_stance: MovementStance::Walk,
+        }
+    }
+
+    pub fn detective() -> Self {
+        Self {
+            default_stance: MovementStance::Walk,
+        }
+    }
+
+    /// Create the initial Stance component from this profile's default.
+    pub fn initial_stance(&self) -> Stance {
+        Stance(self.default_stance)
+    }
+}
+
 /// ECS component tracking an entity's current movement stance.
 /// Attached to PlayerCharacter (and potentially NPCs in future).
 #[derive(Component, Debug, Clone, Copy, PartialEq, Eq)]
@@ -159,4 +196,55 @@ mod tests {
         // Switch to sprint mid-cooldown
         assert!(cd.try_move(MovementStance::Sprint)); // sprint allows every tick
     }
+
+    // -----------------------------------------------------------------------
+    // MovementProfile tests (#418, D-053)
+    // -----------------------------------------------------------------------
+
+    #[test]
+    fn movement_profile_default_is_walk() {
+        let profile = MovementProfile::default();
+        assert_eq!(profile.default_stance, MovementStance::Walk);
+    }
+
+    #[test]
+    fn movement_profile_smuggler_defaults_to_walk() {
+        let profile = MovementProfile::smuggler();
+        assert_eq!(profile.default_stance, MovementStance::Walk);
+    }
+
+    #[test]
+    fn movement_profile_detective_defaults_to_walk() {
+        let profile = MovementProfile::detective();
+        assert_eq!(profile.default_stance, MovementStance::Walk);
+    }
+
+    #[test]
+    fn movement_profile_initial_stance_matches_default() {
+        let profile = MovementProfile::smuggler();
+        let stance = profile.initial_stance();
+        assert_eq!(stance.0, profile.default_stance);
+    }
+
+    #[test]
+    fn movement_profile_custom_default_stance() {
+        let profile = MovementProfile {
+            default_stance: MovementStance::Careful,
+        };
+        assert_eq!(profile.default_stance, MovementStance::Careful);
+        assert_eq!(profile.initial_stance().0, MovementStance::Careful);
+    }
+
+    #[test]
+    fn movement_profile_as_ecs_component() {
+        let mut world = bevy_ecs::world::World::new();
+        let profile = MovementProfile::smuggler();
+        let entity = world.spawn((profile, profile.initial_stance(), PlayerMoveCooldown::default())).id();
+
+        let stored = world.get::<MovementProfile>(entity).unwrap();
+        assert_eq!(stored.default_stance, MovementStance::Walk);
+
+        let stance = world.get::<Stance>(entity).unwrap();
+        assert_eq!(stance.0, MovementStance::Walk);
+    }
 }