feat: Add credential analytics dashboard

[Rampop01]

Description

This PR implements the Credential Analytics Dashboard to fulfill issue #43. It introduces a new set of data-aggregation endpoints on the backend and pairs them with a responsive, chart-driven dashboard on the frontend.

Fixes

• Fixes [Hard] Add credential analytics dashboard #43

Backend Changes

• Analytics Module: Scaffolded a brand new AnalyticsModule integrating TypeORM repositories for Identity, Verification, and SharedData.
• Analytics Controller: Exposed the GET /analytics/dashboard REST endpoint, delivering structured usage metrics.
• Analytics Service: Built comprehensive data aggregation logic:
  • Tracks total vs. active vs. revoked credentials.
  • Monitors total verifications and categorizes them by status (Approved, Rejected, Pending, Expired).
  • Analyzes total sharing patterns including active and expired shares.
  • Computes an interactive 7-day time-series trend of created verifications.
• App Module: Imported and registered the AnalyticsModule in app.module.ts.

Frontend Changes

• Data Visualization: Installed recharts to enable dynamic and rich metric charting.
• Analytics Component: Created a new CredentialAnalyticsDashboard UI component containing:
  • High-level metric summary cards (Total Credentials Issued, Verifications, Data Shares).
  • A responsive LineChart plotting the 7-day verification trend.
  • A responsive PieChart demonstrating verification rates by status.
• Main App Layout: Updated src/app/page.tsx to include a brand new 'Analytics Dashboard' tab, making the dashboard directly accessible from the central navigation menu.

Acceptance Criteria Covered

• ✅ Statistics are accurate (driven by TypeORM counts and aggregations).
• ✅ Reports are useful (exposes actionable dashboard metrics).
• ✅ Visualizations are clear (implemented beautiful interactive charts via Recharts).
• ✅ Data is aggregated correctly.
• ✅ Performance is good (SQL aggregations at the database level).

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[Rampop01]

@Josie123-Dev this is my PR to issue #43 , kindly review.

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Project	Deployment	Actions	Updated (UTC)
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[Josie123-Dev]

@Rampop01 kindly resolve merge conflict at backend/src/app.module.ts

[Rampop01]

@Rampop01 kindly resolve merge conflict at backend/src/app.module.ts

Okay, on it

[Rampop01]

@Josie123-Dev it has been fixed

[Josie123-Dev]

Thank you @Rampop01 for your contribution