Add daily historical strategy shares tracking

[uditdc]

This PR implements daily historical tracking of exchange rates between strategy shares and their underlying tokens, addressing issue #373. The system captures daily snapshots of the sharesToUnderlying conversion rates for all tracked strategy tokens in the EigenLayer ecosystem.

Closes #373

Key Changes

Database Schema

• New Table: StrategySharesDaily with fields:
  • strategyAddress: Strategy contract address
  • tokenAddress: Underlying token address
  • sharesToUnderlying: Exchange rate as BigInt string
  • timestamp: Daily timestamp (UTC midnight)

Data Collection

• New Seeder: seedStrategySharesDaily.ts
  • Reads sharesToUnderlyingView(1e18) from strategy contracts
  • Captures daily snapshots for all strategies in the database
  • Implements incremental sync (only processes new days)
  • Robust error handling with database fallbacks
  • Integrated into daily seeding workflow

API Endpoint

• New Route: GET /metrics/historical/strategy-shares/:strategyAddress
  • Returns historical exchange rate data for a specific strategy
  • Cached responses (120 seconds)
  • Ordered by timestamp (ascending)
  • Response format:

    {
      "data": [
        {
          "strategyAddress": "0x...",
          "tokenAddress": "0x...", 
          "exchangeRate": "1000000000000000000",
          "timestamp": "2024-01-01T00:00:00.000Z"
        }
      ]
    }