fix(config): use predictable paths and proper typings

[sthaha]

This modifies config to make use of proper python typing for config and to make use of predictable paths for directories

Changes include:

• adding new RESOURCE_DIR config for resources dir
• add typing info to get_config to return proper types
• fix casing to follow pep8

Checklist for PR Author

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In addition to approval, the author must confirm the following check list:

• [ ] Run the following command to format your code:

  make fmt

• [ ] Create issues for unresolved comments and link them to this PR. Use one of the following labels:

  • must-fix: The logic appears incorrect and must be addressed.
  • minor: Typos, minor issues, or potential refactoring for better readability.
  • nit: Trivial issues like extra spaces, commas, etc.