- Add README.md with installation instructions, architecture overview, and API examples for all SDK modules
- Add AuthProvider class with API key and JWT token support (generateJWTToken, validateJWTToken, getHeaders, clearTokenCache methods)
- Add HTTPClient base class with retry logic, error handling, and timeout management
- Add GraphQLAPI, PaymentAPI, RatingPlanAPI, SubscriberAPI, System
- Elixir: Update Elixir to 1.17, finch to 0.19, ex_doc to 0.37
- Kotlin: Update Kotlin to 2.1.0, kotlinx-coroutines to 1.10.1, kotlinx-serialization to 1.8.0, Ktor to 3.0.3
- Python: Update aiohttp to 3.10.0, websockets to 14.0.0, pydantic to 2.10.0, typing-extensions to 4.12.0
- Ruby: Update httparty to 0.23, websocket-client-simple to 0.4, json to 2.7, minitest to 5.25, rubocop to 1.72
- Rust: Update reqwest to 0.12, tokio-tungstenite
nutcas3