fix: ignore system user in users query & add full name to user in install route

internal/db/query/user_accounts.sql

@@ -2,7 +2,7 @@
 SELECT * FROM user_account WHERE user_id = $1;
 
 -- name: GetAllUserAccounts :many
-SELECT * FROM user_account;
+SELECT * FROM user_account WHERE username != 'system';
 
 -- name: GetUserAccountByUsername :one
 SELECT * FROM user_account WHERE username = $1;

internal/db/user_accounts.sql.go

@@ -62,7 +62,7 @@ func (q *Queries) DeleteUserAccountByID(ctx context.Context, userID uuid.UUID) e
 }
 
 const getAllUserAccounts = `-- name: GetAllUserAccounts :many
-SELECT user_id, created_at, email, username, password_hash, profile_bg_color, full_name, initials, profile_avatar_url, role_code FROM user_account
+SELECT user_id, created_at, email, username, password_hash, profile_bg_color, full_name, initials, profile_avatar_url, role_code FROM user_account WHERE username != 'system'
 `
 
 func (q *Queries) GetAllUserAccounts(ctx context.Context) ([]UserAccount, error) {