style(simulation): cargo fmt + fix clippy warnings after economics integration

- `economy.rs`: fix empty_line_after_doc_comments (section ordering),
  use `is_multiple_of` for ECON_TICK_RATE check
- `debug.rs`, `input.rs`, `mod.rs`: rustfmt import ordering + indentation

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

server/src/simulation/input.rs

@@ -4,10 +4,10 @@
 
 use crate::bridge::debug::DebugCommandBuffer;
 use crate::bridge::types::{FacingDirection, ObjectType, PlayerAction, PlayerInput};
-use crate::simulation::economy::EconQueryBuffer;
 use crate::knowledge::{EntityRegistry, StableId};
 use crate::perception::vision_cone::{facing_from_delta, Facing};
 use crate::settings::{SettingsCommand, SettingsCommandBuffer};
+use crate::simulation::economy::EconQueryBuffer;
 use crate::simulation::interaction::{DoorInteractRequest, DoorState, TerminalInteractRequest};
 use crate::simulation::inventory::{
     find_next_slot, occupied_slots_for, CarriedBy, InventorySlot, ItemName, MAX_INVENTORY_SLOTS,
@@ -129,7 +129,7 @@ pub fn process_player_input(
                     | PlayerAction::ChangeSetting { .. }
                     | PlayerAction::RequestAllSettings
                     | PlayerAction::DeleteSetting { .. }
-                | PlayerAction::EconStateQuery { .. }
+                    | PlayerAction::EconStateQuery { .. }
             )
         {
             continue;