Refactor handlers and OpenAPI documentation for improved readability and consistency

- Reorganized imports in health, notifications, social, thoughts, and users handlers for clarity.
- Updated function signatures in handlers to improve readability by aligning parameters.
- Enhanced JSON response formatting in notifications and thoughts handlers.
- Improved error handling in user-related functions.
- Refactored OpenAPI documentation to maintain consistent formatting and structure.
- Cleaned up unnecessary code and comments across various files.
- Ensured consistent use of `Arc` for shared state in AppState and WorkerHandlers.

crates/domain/src/models/user.rs

@@ -1,5 +1,5 @@
+use crate::value_objects::{Email, PasswordHash, UserId, Username};
 use chrono::{DateTime, Utc};
-use crate::value_objects::{UserId, Username, Email, PasswordHash};
 
 #[derive(Debug, Clone)]
 pub struct User {
@@ -22,14 +22,30 @@ pub struct User {
 }
 
 impl User {
-    pub fn new_local(id: UserId, username: Username, email: Email, password_hash: PasswordHash) -> Self {
+    pub fn new_local(
+        id: UserId,
+        username: Username,
+        email: Email,
+        password_hash: PasswordHash,
+    ) -> Self {
         let now = Utc::now();
         Self {
-            id, username, email, password_hash,
-            display_name: None, bio: None, avatar_url: None, header_url: None,
-            custom_css: None, local: true, ap_id: None, inbox_url: None,
-            public_key: None, private_key: None,
-            created_at: now, updated_at: now,
+            id,
+            username,
+            email,
+            password_hash,
+            display_name: None,
+            bio: None,
+            avatar_url: None,
+            header_url: None,
+            custom_css: None,
+            local: true,
+            ap_id: None,
+            inbox_url: None,
+            public_key: None,
+            private_key: None,
+            created_at: now,
+            updated_at: now,
         }
     }
 }