fix(users): add missing password_hash bind parameter in user create

- INSERT statement had only 4 placeholders but 5 columns specified
- Add  placeholder for password_hash and bind it properly

crates/db/src/models/user.rs

@@ -52,7 +52,7 @@ impl UserRepository {
         let user = sqlx::query_as::<_, User>(
             r#"
             INSERT INTO users (first_name, last_name, email, password_hash, email_verified, phone_verified)
-            VALUES ($1, $2, $3, false, false)
+            VALUES ($1, $2, $3, $4, false, false)
             RETURNING
                 id, email, password_hash, first_name, last_name,
                 email_verified, phone_verified, status,