style: apply cargo fmt to entire codebase

Standardize code formatting across all 173 Rust source files
using rustfmt. No functional changes - purely cosmetic.

This establishes a consistent code style baseline for the
project going forward.

src/domain/repositories/session_repository.rs

@@ -1,15 +1,15 @@
-use async_trait::async_trait;
-use crate::domain::entities::session::Session;
 use crate::common::errors::DomainError;
+use crate::domain::entities::session::Session;
+use async_trait::async_trait;
 
 #[derive(Debug, thiserror::Error)]
 pub enum SessionRepositoryError {
     #[error("Session not found: {0}")]
     NotFound(String),
-    
+
     #[error("Database error: {0}")]
     DatabaseError(String),
-    
+
     #[error("Timeout error: {0}")]
     Timeout(String),
 }
@@ -20,15 +20,11 @@ pub type SessionRepositoryResult<T> = Result<T, SessionRepositoryError>;
 impl From<SessionRepositoryError> for DomainError {
     fn from(err: SessionRepositoryError) -> Self {
         match err {
-            SessionRepositoryError::NotFound(msg) => {
-                DomainError::not_found("Session", msg)
-            },
+            SessionRepositoryError::NotFound(msg) => DomainError::not_found("Session", msg),
             SessionRepositoryError::DatabaseError(msg) => {
                 DomainError::internal_error("Database", msg)
-            },
-            SessionRepositoryError::Timeout(msg) => {
-                DomainError::timeout("Database", msg)
-            },
+            }
+            SessionRepositoryError::Timeout(msg) => DomainError::timeout("Database", msg),
         }
     }
 }
@@ -37,22 +33,26 @@ impl From<SessionRepositoryError> for DomainError {
 pub trait SessionRepository: Send + Sync + 'static {
     /// Creates a new session
     async fn create_session(&self, session: Session) -> SessionRepositoryResult<Session>;
-    
+
     /// Gets a session by ID
     async fn get_session_by_id(&self, id: &str) -> SessionRepositoryResult<Session>;
-    
+
     /// Gets a session by refresh token
-    async fn get_session_by_refresh_token(&self, refresh_token: &str) -> SessionRepositoryResult<Session>;
-    
+    async fn get_session_by_refresh_token(
+        &self,
+        refresh_token: &str,
+    ) -> SessionRepositoryResult<Session>;
+
     /// Gets all sessions for a user
-    async fn get_sessions_by_user_id(&self, user_id: &str) -> SessionRepositoryResult<Vec<Session>>;
-    
+    async fn get_sessions_by_user_id(&self, user_id: &str)
+    -> SessionRepositoryResult<Vec<Session>>;
+
     /// Revokes a specific session
     async fn revoke_session(&self, session_id: &str) -> SessionRepositoryResult<()>;
-    
+
     /// Revokes all sessions for a user
     async fn revoke_all_user_sessions(&self, user_id: &str) -> SessionRepositoryResult<u64>;
-    
+
     /// Deletes expired sessions
     async fn delete_expired_sessions(&self) -> SessionRepositoryResult<u64>;
-}
+}