[UPDATE] Improved Code Readability

[aandrewchung]

Description

This PR standardizes naming conventions across the Story Protocol Python SDK by:

1. Converting method names from camelCase to snake_case for better Python style compliance
2. Updating variable names for consistency
3. Centralizing constants in utils/constants.py and updating imports
4. Removing unnecessary whitespace and improving code formatting

These changes improve code readability, maintainability, and adherence to Python style guidelines (PEP 8).

Test Plan

• 1. Run all existing tests to ensure functionality is preserved despite naming changes
• 2. Verify that all renamed methods are properly referenced throughout the codebase
• 3. Check that constant imports are working correctly
• 4. Ensure all client classes still function as expected

Related Issue

n/a

Notes

• This is a breaking change for anyone using the SDK with the old method names
• Documentation should be updated to reflect the new naming conventions

[bpolania]

LGTM