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/user_repository.rs

@@ -1,24 +1,24 @@
-use async_trait::async_trait;
-use crate::domain::entities::user::{User, UserRole};
 use crate::common::errors::DomainError;
+use crate::domain::entities::user::{User, UserRole};
+use async_trait::async_trait;
 
 #[derive(Debug, thiserror::Error)]
 pub enum UserRepositoryError {
     #[error("User not found: {0}")]
     NotFound(String),
-    
+
     #[error("User already exists: {0}")]
     AlreadyExists(String),
-    
+
     #[error("Database error: {0}")]
     DatabaseError(String),
-    
+
     #[error("Validation error: {0}")]
     ValidationError(String),
-    
+
     #[error("Timeout error: {0}")]
     Timeout(String),
-    
+
     #[error("Operation not allowed: {0}")]
     OperationNotAllowed(String),
 }
@@ -29,24 +29,14 @@ pub type UserRepositoryResult<T> = Result<T, UserRepositoryError>;
 impl From<UserRepositoryError> for DomainError {
     fn from(err: UserRepositoryError) -> Self {
         match err {
-            UserRepositoryError::NotFound(msg) => {
-                DomainError::not_found("User", msg)
-            },
-            UserRepositoryError::AlreadyExists(msg) => {
-                DomainError::already_exists("User", msg)
-            },
-            UserRepositoryError::DatabaseError(msg) => {
-                DomainError::internal_error("Database", msg)
-            },
-            UserRepositoryError::ValidationError(msg) => {
-                DomainError::validation_error(msg)
-            },
-            UserRepositoryError::Timeout(msg) => {
-                DomainError::timeout("Database", msg)
-            },
+            UserRepositoryError::NotFound(msg) => DomainError::not_found("User", msg),
+            UserRepositoryError::AlreadyExists(msg) => DomainError::already_exists("User", msg),
+            UserRepositoryError::DatabaseError(msg) => DomainError::internal_error("Database", msg),
+            UserRepositoryError::ValidationError(msg) => DomainError::validation_error(msg),
+            UserRepositoryError::Timeout(msg) => DomainError::timeout("Database", msg),
             UserRepositoryError::OperationNotAllowed(msg) => {
                 DomainError::access_denied("User", msg)
-            },
+            }
         }
     }
 }
@@ -55,48 +45,62 @@ impl From<UserRepositoryError> for DomainError {
 pub trait UserRepository: Send + Sync + 'static {
     /// Creates a new user
     async fn create_user(&self, user: User) -> UserRepositoryResult<User>;
-    
+
     /// Gets a user by ID
     async fn get_user_by_id(&self, id: &str) -> UserRepositoryResult<User>;
-    
+
     /// Gets a user by username
     async fn get_user_by_username(&self, username: &str) -> UserRepositoryResult<User>;
-    
+
     /// Gets a user by email
     async fn get_user_by_email(&self, email: &str) -> UserRepositoryResult<User>;
-    
+
     /// Updates an existing user
     async fn update_user(&self, user: User) -> UserRepositoryResult<User>;
-    
+
     /// Updates only a user's storage usage
-    async fn update_storage_usage(&self, user_id: &str, usage_bytes: i64) -> UserRepositoryResult<()>;
-    
+    async fn update_storage_usage(
+        &self,
+        user_id: &str,
+        usage_bytes: i64,
+    ) -> UserRepositoryResult<()>;
+
     /// Updates the last login date
     async fn update_last_login(&self, user_id: &str) -> UserRepositoryResult<()>;
-    
+
     /// Lists users with pagination
     async fn list_users(&self, limit: i64, offset: i64) -> UserRepositoryResult<Vec<User>>;
-    
+
     /// Activates or deactivates a user
-    async fn set_user_active_status(&self, user_id: &str, active: bool) -> UserRepositoryResult<()>;
-    
+    async fn set_user_active_status(&self, user_id: &str, active: bool)
+    -> UserRepositoryResult<()>;
+
     /// Changes a user's password
-    async fn change_password(&self, user_id: &str, password_hash: &str) -> UserRepositoryResult<()>;
-    
+    async fn change_password(&self, user_id: &str, password_hash: &str)
+    -> UserRepositoryResult<()>;
+
     /// Changes a user's role
     async fn change_role(&self, user_id: &str, role: UserRole) -> UserRepositoryResult<()>;
-    
+
     /// Lists users by role (admin or user)
     async fn list_users_by_role(&self, role: &str) -> UserRepositoryResult<Vec<User>>;
-    
+
     /// Deletes a user
     async fn delete_user(&self, user_id: &str) -> UserRepositoryResult<()>;
 
     /// Finds a user by OIDC provider + subject pair
-    async fn get_user_by_oidc_subject(&self, provider: &str, subject: &str) -> UserRepositoryResult<User>;
+    async fn get_user_by_oidc_subject(
+        &self,
+        provider: &str,
+        subject: &str,
+    ) -> UserRepositoryResult<User>;
 
     /// Updates a user's storage quota
-    async fn update_storage_quota(&self, user_id: &str, quota_bytes: i64) -> UserRepositoryResult<()>;
+    async fn update_storage_quota(
+        &self,
+        user_id: &str,
+        quota_bytes: i64,
+    ) -> UserRepositoryResult<()>;
 
     /// Counts the total number of users
     async fn count_users(&self) -> UserRepositoryResult<i64>;
@@ -114,4 +118,4 @@ pub struct StorageStats {
     pub total_used_bytes: i64,
     pub users_over_80_percent: i64,
     pub users_over_quota: i64,
-}
+}