Base Calculator Component

[0xSero]

Calculator Component

Overview

This PR implements a modular calculator component for monitoring delegatee score events and determining deposit bumpability.

Key Changes

• Created calculator component with strategy pattern support
• Implemented base calculator strategy with score event processing
• Added database support for score events (create, update, delete, query)
• Migrated numeric handling from BigNumber to native bigint
• Added block range processing with checkpoint tracking

Technical Details

• Uses native bigint for all numeric calculations
• Handles type conversion between database (string) and calculator (bigint) score representations
• Implements caching layer for score lookups
• Supports batch processing of score events
• Maintains processing checkpoints for resumability

Database Changes

Added new table and functionality:

CREATE TABLE score_events (
  delegatee TEXT NOT NULL,
  score NUMERIC NOT NULL,
  block_number BIGINT NOT NULL,
  created_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP,
  updated_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP,
  PRIMARY KEY (delegatee, block_number)
);

Related Issues

Closes #4