zentro-export-and-history

name	zentro-export-and-history
description	Guardrails for CSV export and query-history retention with stable schema and low coupling.

Skill 07: Export and History

Purpose

Provide reliable export and actionable query history without leaking UI internals into persistence.

Boundary

• Services produce export/history DTOs.
• Facade exposes simple export/history APIs.
• Frontend triggers actions and renders history.

Mandatory Rules

• Export must preserve header order and escaping rules.
• History entry must include query, time, profile, duration, status.
• Retention policy must be explicit.

Verification

• Tests for CSV correctness and history trimming.
• Manual check for export from filtered/edited view.