chore(application): fix unused import and clippy warnings in thoughts use cases

crates/application/src/use_cases/thoughts.rs

@@ -8,7 +8,6 @@ use domain::{
     ports::{EngagementRepository, EventPublisher, OutboxWriter, TagRepository, ThoughtRepository, UserReader},
     value_objects::{Content, ThoughtId, UserId},
 };
-use std::collections::HashMap;
 
 fn require_owner(thought: &Thought, user_id: &UserId) -> Result<(), DomainError> {
     if thought.user_id != *user_id {
@@ -117,20 +116,6 @@ pub async fn edit_thought(
     Ok(())
 }
 
-pub async fn get_thought(
-    thoughts: &dyn ThoughtRepository,
-    id: &ThoughtId,
-) -> Result<Thought, DomainError> {
-    thoughts.find_by_id(id).await?.ok_or(DomainError::NotFound)
-}
-
-pub async fn get_thread(
-    thoughts: &dyn ThoughtRepository,
-    id: &ThoughtId,
-) -> Result<Vec<Thought>, DomainError> {
-    thoughts.get_thread(id).await
-}
-
 /// Fetches a single thought enriched with author + real engagement stats.
 pub async fn get_thought_view(
     thoughts: &dyn ThoughtRepository,
@@ -148,9 +133,9 @@ pub async fn get_thought_view(
         .await?
         .ok_or(DomainError::NotFound)?;
     let mut map = engagement.get_for_thoughts(&[id.clone()], viewer).await?;
-    let (stats, viewer_ctx) = map.remove(id).unwrap_or_else(|| {
+    let (stats, viewer_ctx) = map.remove(id).unwrap_or(
         (EngagementStats { like_count: 0, boost_count: 0, reply_count: 0 }, None)
-    });
+    );
     Ok(FeedEntry { thought, author, stats, viewer: viewer_ctx })
 }
 
@@ -184,9 +169,9 @@ pub async fn get_thread_views(
             .get(&thought.user_id)
             .cloned()
             .ok_or(DomainError::NotFound)?;
-        let (stats, viewer_ctx) = engagement_map.remove(&thought.id).unwrap_or_else(|| {
+        let (stats, viewer_ctx) = engagement_map.remove(&thought.id).unwrap_or(
             (EngagementStats { like_count: 0, boost_count: 0, reply_count: 0 }, None)
-        });
+        );
         entries.push(FeedEntry { thought, author, stats, viewer: viewer_ctx });
     }
     Ok(entries)