style: cargo fmt --all — make codebase rustfmt-clean

First run of the build-and-test CI gate (cargo fmt --all -- --check) surfaced
pre-existing formatting drift across the agent and server crates. Apply rustfmt
across the workspace so the codebase meets its own CI gate. Pure formatting; no
logic changes.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

server/src/api/auth.rs

@@ -1,15 +1,13 @@
 //! Authentication API endpoints
 
 use axum::{
-    extract::{State, Request},
+    extract::{Request, State},
     http::StatusCode,
     Json,
 };
 use serde::{Deserialize, Serialize};
 
-use crate::auth::{
-    verify_password, AuthenticatedUser, JwtConfig,
-};
+use crate::auth::{verify_password, AuthenticatedUser, JwtConfig};
 use crate::db;
 use crate::AppState;
 
@@ -89,16 +87,15 @@ pub async fn login(
     }
 
     // Verify password
-    let password_valid = verify_password(&request.password, &user.password_hash)
-        .map_err(|e| {
-            tracing::error!("Password verification error: {}", e);
-            (
-                StatusCode::INTERNAL_SERVER_ERROR,
-                Json(ErrorResponse {
-                    error: "Internal server error".to_string(),
-                }),
-            )
-        })?;
+    let password_valid = verify_password(&request.password, &user.password_hash).map_err(|e| {
+        tracing::error!("Password verification error: {}", e);
+        (
+            StatusCode::INTERNAL_SERVER_ERROR,
+            Json(ErrorResponse {
+                error: "Internal server error".to_string(),
+            }),
+        )
+    })?;
 
     if !password_valid {
         return Err((
@@ -118,21 +115,18 @@ pub async fn login(
     let _ = db::update_last_login(db.pool(), user.id).await;
 
     // Create JWT token
-    let token = state.jwt_config.create_token(
-        user.id,
-        &user.username,
-        &user.role,
-        permissions.clone(),
-    )
-    .map_err(|e| {
-        tracing::error!("Token creation error: {}", e);
-        (
-            StatusCode::INTERNAL_SERVER_ERROR,
-            Json(ErrorResponse {
-                error: "Failed to create token".to_string(),
-            }),
-        )
-    })?;
+    let token = state
+        .jwt_config
+        .create_token(user.id, &user.username, &user.role, permissions.clone())
+        .map_err(|e| {
+            tracing::error!("Token creation error: {}", e);
+            (
+                StatusCode::INTERNAL_SERVER_ERROR,
+                Json(ErrorResponse {
+                    error: "Failed to create token".to_string(),
+                }),
+            )
+        })?;
 
     tracing::info!("User {} logged in successfully", user.username);
 
@@ -288,16 +282,15 @@ pub async fn change_password(
     }
 
     // Hash new password
-    let new_hash = crate::auth::hash_password(&request.new_password)
-        .map_err(|e| {
-            tracing::error!("Password hashing error: {}", e);
-            (
-                StatusCode::INTERNAL_SERVER_ERROR,
-                Json(ErrorResponse {
-                    error: "Failed to hash password".to_string(),
-                }),
-            )
-        })?;
+    let new_hash = crate::auth::hash_password(&request.new_password).map_err(|e| {
+        tracing::error!("Password hashing error: {}", e);
+        (
+            StatusCode::INTERNAL_SERVER_ERROR,
+            Json(ErrorResponse {
+                error: "Failed to hash password".to_string(),
+            }),
+        )
+    })?;
 
     // Update password
     db::update_user_password(db.pool(), user_id, &new_hash)