T-Invest gRPC SDK

Lightweight TypeScript SDK for T-Invest API (Tinkoff Investments) built on nice-grpc and ts-proto. Provides full gRPC client covering Users, Orders, MarketData, Operations, Instruments, StopOrders, Sandbox, and Signals services. Integrates unary and streaming endpoints with optional split channels. Includes a high-level MarketDataStreamController for managing subscriptions. Exposes TypeLoggerCb for structured logging with rate-limit headers and API error mapping. Supports sandbox mode, custom endpoints, and gRPC channel options. Currently at v3.0.0, actively maintained with releases tied to upstream contract updates.