feat(ci): add tracing::instrument to heavy per-tick systems, fix stale protocol comment (#344, #527)

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

server/src/simulation/dialogue.rs

@@ -337,6 +337,7 @@ pub fn select_dialogue_line<'a>(
 /// line to DialogueResponseBuffer.
 ///
 /// System ordering: after process_player_input, before compute_observer_snapshot.
+#[tracing::instrument(level = "debug", skip_all)]
 #[allow(clippy::type_complexity, clippy::too_many_arguments)]
 pub fn process_talk_interaction(
     mut commands: Commands,

server/src/simulation/interaction.rs

@@ -164,6 +164,7 @@ impl ObjectType {
 /// priority adjustment (e.g. POI -> Observe first) is applied by the observer
 /// system after taking the buffer. This keeps the simulation phase free of
 /// knowledge graph dependencies (D-010 phase boundary).
+#[tracing::instrument(level = "debug", skip_all)]
 #[allow(clippy::type_complexity)]
 pub fn compute_nearby_interactions(
     mut player_query: Query<

server/src/simulation/movement.rs

@@ -273,6 +273,7 @@ pub struct MoveIntent {
 /// entities without intents, then resolve movers in order — first valid claim
 /// to a layer slot wins.
 /// Always removes MoveIntent component after processing.
+#[tracing::instrument(level = "debug", skip_all)]
 pub fn validate_movement(
     mut commands: Commands,
     walkability: Option<Res<WalkabilityMap>>,

server/src/simulation/path_follow.rs

@@ -48,6 +48,7 @@ impl MovementSpeed {
 
 /// System: NPC entities with ComputedPath advance along their path.
 /// Creates MoveIntent for the next step. Removes ComputedPath when complete.
+#[tracing::instrument(level = "debug", skip_all)]
 pub fn follow_paths(
     mut commands: Commands,
     mut query: Query<(Entity, &mut ComputedPath, Option<&mut MovementSpeed>), With<Npc>>,

server/src/simulation/pathfinding.rs

@@ -58,6 +58,7 @@ pub struct PathBlocked;
 /// Cardinal-only is a deliberate v0.1 simplification: diagonal movement
 /// would require √2 cost handling and diagonal wall-clipping checks.
 /// Removes PathRequest and inserts ComputedPath or PathBlocked.
+#[tracing::instrument(level = "debug", skip_all)]
 pub fn compute_paths(
     mut commands: Commands,
     walkability: Option<Res<WalkabilityMap>>,