v0.2.0

What's Changed

• Canonical field names — EVOpportunity model now uses the canonical API field names as attributes:
  • ev_percent → ev_percentage
  • true_probability → fair_probability
  • devig_book → sharp_book
  • kelly_fraction → kelly_percent
• Backwards compatible — Pydantic AliasChoices accepts both old and new field names from API responses
• Removed unused import, bumped user agent string