[DRAFT] Fix "Rate limit reached"

[Valera56pub]

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Task description

1. Run docker compose -f devops/dev/docker-compose.data-handler.yaml up --build
2. Explore the file; apps/data_handler/handlers/liquidable_debt/protocols/zklend.py
3. Fix this Error:

Note that you have to find out the limits and fix it to avoid making too many requests

[TheCoderAdi]

Hey, I'd like to work on this issue by first tracing the rate limited request that’s triggered within ZkLendDBLiquidableDebtDataHandler.calculate_liquidable_debt() specifically where it calls the Starknet full node via call_contract(). I’ll wrap these contract calls with retry logic using exponential backoff (via backoff or manual async handling) to gracefully handle 429 errors.

Telegram: @adi07raj
ETA: 4–5 hours

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