Add rate limiting for export

**Description**
Currently parsers lacks proper sorting support.

**Proposed solution**
Add configurable sorting with sensible defaults.

**Priority**: Low/Medium

Start by locating the parser and export entry points in the Shell codebase. Clarify whether the intended change is rate limiting for export, configurable parser sorting, or both, since the title and description conflict. Done should include agreed behavior, sensible defaults, and coverage for the affected path.

Written by the indexing model from the issue text.