Refactor database error handling across repositories to use IntoDbResult for improved error management

- Updated PgNotificationRepository to utilize IntoDbResult for error handling in various methods.
- Refactored PgRemoteActorRepository to replace manual error mapping with IntoDbResult.
- Modified PgRemoteActorConnectionRepository to implement IntoDbResult for error handling.
- Adjusted PgTagRepository to use IntoDbResult for consistent error management.
- Introduced test_helpers module for seeding users and thoughts in tests.
- Enhanced PgThoughtRepository to leverage IntoDbResult for error handling.
- Updated PgTopFriendRepository to utilize IntoDbResult for error management.
- Refactored PgUserRepository to implement IntoDbResult for error handling.
- Added constants for pagination defaults in requests.
- Introduced MAX_TOP_FRIENDS constant for top friends validation.
- Refactored JWT expiration time to use a constant.
- Improved rate limiter configuration with constants for better readability.
- Added utility methods for FollowState and Visibility enums for string conversions.
- Introduced maximum length constants for Username, Email, and Content value objects.
- Cleaned up test modules by removing redundant code and utilizing a shared testing state.

crates/adapters/postgres/src/user.rs

@@ -1,3 +1,4 @@
+use crate::db_error::IntoDbResult;
 use async_trait::async_trait;
 use chrono::{DateTime, Utc};
 use domain::{
@@ -18,7 +19,7 @@ impl PgUserRepository {
 }
 
 #[derive(sqlx::FromRow)]
-pub(crate) struct UserRow {
+pub struct UserRow {
     pub id: uuid::Uuid,
     pub username: String,
     pub email: String,
@@ -56,7 +57,7 @@ impl From<UserRow> for User {
     }
 }
 
-const USER_SELECT: &str = "SELECT id,username,email,password_hash,display_name,bio,avatar_url,header_url,custom_css,local,ap_id,inbox_url,created_at,updated_at FROM users";
+pub const USER_SELECT: &str = "SELECT id,username,email,password_hash,display_name,bio,avatar_url,header_url,custom_css,local,ap_id,inbox_url,created_at,updated_at FROM users";
 
 #[async_trait]
 impl UserRepository for PgUserRepository {
@@ -65,7 +66,7 @@ impl UserRepository for PgUserRepository {
             .bind(id.as_uuid())
             .fetch_optional(&self.pool)
             .await
-            .map_err(|e| DomainError::Internal(e.to_string()))
+            .into_domain()
             .map(|o| o.map(User::from))
     }
 
@@ -74,7 +75,7 @@ impl UserRepository for PgUserRepository {
             .bind(username.as_str())
             .fetch_optional(&self.pool)
             .await
-            .map_err(|e| DomainError::Internal(e.to_string()))
+            .into_domain()
             .map(|o| o.map(User::from))
     }
 
@@ -83,7 +84,7 @@ impl UserRepository for PgUserRepository {
             .bind(email.as_str())
             .fetch_optional(&self.pool)
             .await
-            .map_err(|e| DomainError::Internal(e.to_string()))
+            .into_domain()
             .map(|o| o.map(User::from))
     }
 
@@ -115,7 +116,7 @@ impl UserRepository for PgUserRepository {
         .bind(user.updated_at)
         .execute(&self.pool)
         .await
-        .map_err(|e| DomainError::Internal(e.to_string()))
+        .into_domain()
         .map(|_| ())
     }
 
@@ -139,7 +140,7 @@ impl UserRepository for PgUserRepository {
         .bind(custom_css)
         .execute(&self.pool)
         .await
-        .map_err(|e| DomainError::Internal(e.to_string()))
+        .into_domain()
         .map(|_| ())
     }
 
@@ -170,7 +171,7 @@ impl UserRepository for PgUserRepository {
         )
         .fetch_all(&self.pool)
         .await
-        .map_err(|e| DomainError::Internal(e.to_string()))?;
+        .into_domain()?;
 
         Ok(rows
             .into_iter()
@@ -191,7 +192,7 @@ impl UserRepository for PgUserRepository {
         sqlx::query_scalar::<_, i64>("SELECT COUNT(*) FROM users WHERE local = true")
             .fetch_one(&self.pool)
             .await
-            .map_err(|e| DomainError::Internal(e.to_string()))
+            .into_domain()
     }
 }