Refactor/dev 199 implement dao daily metric buckets

[LeonardoVieira1630]

Summary

This PR implements a new REST endpoint for token metrics with forward-fill logic, replacing the previous centralized forward-fill implementation with a dedicated token metrics service that handles daily metric buckets.

Key Changes

New Token Metrics Endpoint

• New endpoint: GET /token-metrics - Returns token-related metrics with forward-fill support
• Supports multiple metric types in a single request (e.g., ?type=CEX_SUPPLY&type=DEX_SUPPLY)
• Implements cursor-based pagination with after, before, and limit parameters
• Handles date range filtering with startDate and endDate

Code Organization

• Refactored time-series utilities: Split time-series.ts into focused modules:
  • date-helpers.ts - Date manipulation utilities (truncate to midnight, normalize timestamps)
  • query-helpers.ts - Pagination and filtering utilities (cursor pagination, fallback logic)
  • time-series.ts - Core forward-fill and timeline generation
• Removed old type: DaoMetricsDayBucket type removed in favor of new structure

Forward-Fill Strategy

The service implements forward-fill to handle sparse database data:

• Database stores only value changes (not daily records), creating gaps between dates
• Forward-fill carries forward the last known value for missing dates
• Example: [Day1: 100] [Day5: 150] → [100, 100, 100, 100, 150]

Frontend Updates

• Updated useTimeSeriesData hook to work with new endpoint structure
• Updated chart components to use new data format

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Project	Deployment	Review	Updated (UTC)
anticapture	Ready	Preview, Comment	Jan 22, 2026 2:23pm

1 Skipped Deployment

Project	Deployment	Review	Updated (UTC)
anticapture-storybook	Skipped		Jan 22, 2026 2:23pm

[pikonha]

LFGTM, nice job 🔥