Enhanced Dashboard Analytics & Reporting (#211)

[mijinummi]

📝 Description

Overview

This PR enhances the Dashboard Analytics & Reporting system.
It provides deeper insights into payment history, conversion rates, and asset distribution.

Key Features

• Aggregation queries for total volume (USD equivalent)
• Asset distribution breakdown
• Time‑series endpoints (daily/weekly/monthly)
• Export functionality (CSV/PDF)
• Unit tests for analytics service

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✅ Acceptance Criteria

• Users can view and export detailed financial reports
• CSV/PDF export supported
• Time‑series data available for chart rendering

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📂 File Changes

• analytics.repository.ts — aggregation queries
• analytics.service.ts — business logic
• analytics.controller.ts — endpoints
• utils/csv-export.ts — CSV export
• utils/pdf-export.ts — PDF export
• __tests__/analytics.service.spec.ts — unit tests

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Closes #211

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[Cedarich]

please fix

Run pnpm run lint

@quickex/[email protected] lint /home/runner/work/QiuckEx/QiuckEx/app/backend
eslint "{src,test}/**/*.ts"

/home/runner/work/QiuckEx/QiuckEx/app/backend/src/utils/csv-export.ts
Error: 3:35 error Unexpected any. Specify a different type @typescript-eslint/no-explicit-any

/home/runner/work/QiuckEx/QiuckEx/app/backend/src/utils/pdf-export.ts
Error: 3:35 error Unexpected any. Specify a different type @typescript-eslint/no-explicit-any
Error: 5:7 error 'buffers' is never reassigned. Use 'const' instead prefer-const

✖ 3 problems (3 errors, 0 warnings)
1 error and 0 warnings potentially fixable with the --fix option.

 ELIFECYCLE  Command failed with exit code 1.
Error: Process completed with exit code 1.