refactor(server): remove dead generate_snapshot function

Delete generate_snapshot from bridge/mod.rs — superseded by
perception::observer::compute_observer_snapshot. Not referenced
in any schedule or test.

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

server/src/bridge/mod.rs

@@ -63,64 +63,6 @@ impl BridgeResource {
     }
 }
 
-/// Generate ObserverSnapshot v2 from ECS state.
-/// Pre-visibility version: sends ALL entities (no LOS filtering yet).
-/// Will be replaced by perception::observer::compute_observer_snapshot in #112.
-pub fn generate_snapshot(
-    time: Res<crate::simulation::time::SimulationTime>,
-    entities: Query<(
-        Entity,
-        &crate::simulation::movement::TilePosition,
-        Option<&crate::simulation::movement::PlayerCharacter>,
-        Option<&crate::npc::Npc>,
-    )>,
-    mut buffer: ResMut<SnapshotBuffer>,
-) {
-    let mut visible = Vec::new();
-    for (entity, pos, is_player, is_npc) in entities.iter() {
-        let (x, y, z) = pos.to_render_coords();
-        let kind = if is_player.is_some() {
-            EntityKind::Player
-        } else if is_npc.is_some() {
-            EntityKind::Npc
-        } else {
-            EntityKind::Object
-        };
-        visible.push(VisibleEntity {
-            entity_id: entity.to_bits(),
-            x,
-            y,
-            z,
-            kind,
-            visibility: VisibilitySector::Forward,
-            relationship: RelationshipState::Unknown,
-            observation: EntityVisibility::Visible,
-        });
-    }
-
-    let game_time = GameTime {
-        day: time.day(),
-        time_of_day: time.time_of_day_minutes(),
-        day_phase: time.day_phase(),
-        tick_rate: time.tick_rate,
-    };
-
-    tracing::trace!(
-        "generate_snapshot: tick={}, entities={}",
-        time.tick,
-        visible.len()
-    );
-    buffer.snapshot = Some(ObserverSnapshot {
-        version: 4,
-        tick: time.tick,
-        game_time,
-        player_facing: FacingDirection::default(),
-        entities: visible,
-        visible_tiles: Vec::new(), // Empty until #112 adds LOS filtering
-        nearby_interactions: Vec::new(),
-    });
-}
-
 /// Receive inputs from bridge and push to InputQueue
 pub fn receive_bridge_inputs(
     bridge: Option<Res<BridgeResource>>,