Refactor engine for strict Clippy checks

crates/engine/src/session/comps.rs

@@ -1,4 +1,4 @@
-use super::*;
+use super::{Comp, CompSelection, Event, ItemId, LayerId, Result, Session, Tick, Value, commands};
 
 /// `t` as a current time of `comp`: a frame within its duration.
 fn comp_frame_at(comp: &Comp, t: Tick) -> Tick {

crates/engine/src/session/dispatch.rs

@@ -1,4 +1,4 @@
-use super::*;
+use super::{EngineError, Event, Result, Session, Value, commands, guard};
 
 impl Session {
     pub fn new() -> Session {

crates/engine/src/session/edit.rs

@@ -1,4 +1,4 @@
-use super::*;
+use super::{Arc, EditorState, EngineError, Event, History, ItemId, Project, Result, Session, camera_track, commands, roto, warp};
 
 impl Session {
     /// Apply an undoable edit. `merge`: consecutive edits with the same key fold into one step.

crates/engine/src/session/render.rs

@@ -1,4 +1,4 @@
-use super::*;
+use super::{EngineError, Image, ItemId, RenderOpts, Renderer, Result, Session, ThumbnailJob, Tick};
 
 impl Session {
     /// Render a comp frame with the session's footage + expression hosts.