# Phase 8 Reporting Structure

## Core Tables
- `report_snapshots`: canonical analytics snapshots by period/date range.
- `report_exports`: export metadata and file references.

## UI Modules
- Report generator (daily/weekly/monthly)
- Summary cards
- Productivity trend chart (Chart.js line)
- Delay analytics chart (Chart.js bar)
- Export actions (CSV/PDF)
- WhatsApp report preparation

## Services
- `ReportingAnalyticsService`:
  - report aggregation
  - snapshot save
  - CSV export
  - PDF HTML render
  - WhatsApp message preparation
