[DRAFT] Fix last_block error

[Valera56pub]

Guideline

1. Carefully read the issue description before applying to ensure you have all the necessary information to start working on it.
2. Write a brief description of how you will approach the task (without using ChatGPT).
3. Add your Telegram handler in your application (e.g., in OnlyDust or similar)
4. Write ETA in your application

What should I do if I have a problem

1. Try to google it before asking. Googling is taking major part of dev work
2. If you couldn't find answer your question with Google, text your question to dev group with your question.
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How to prepare PR

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2. Add close # to link your issue with your PR
3. Do not commit changes which is not related to your task
4. Check after you created PR, if you committed everything.

Task description

1. Explore apps/data_handler/handlers/loan_states
2. Under each protocol you can find a run.py file with a run function
3. The problem is that the last_block is fetched from the loan_states table or is set to zero if not found. Then it starts fetching data with a step of 1000 (PAGINATION_SIZE). If no data is fetched in the range [0, max_retries * PAGINATION_SIZE], then nothing is saved to the database. Consequently, the next time the function runs, it starts with last_block == 0 again, which leads to a situation where data can never be fetched
4. Your task is to fix this. You can create another table to store the latest_block for each protocol

PS: Search for FIRST_RUNNING_MAPPING