Draft: Resolve "Error: Base 58 requirement is violated"

Adding extra information when the DB parsing of DbAccountId fails, so we know for which string it failed.

Then we will need to investigate if we can reproduce the issue when re-importing the linked key.

Closes #48

src/entities/vault_account.rs

@@ -134,7 +134,10 @@ impl sea_orm::TryGetable for DbAccountId {
 			.try_get_by(idx)
 			.map_err(|e| TryGetError::Null(e.to_string()))?;
 		Ok(DbAccountId(AccountId::from_str(&value).map_err(|e| {
-			TryGetError::DbErr(DbErr::Custom(e.to_string()))
+			TryGetError::DbErr(DbErr::Custom(format!(
+				"Cannot parse DbAccountId for string '{}' - error: {}",
+				&value, e
+			)))
 		})?))
 	}
 }