Feat/support binance (#22)

* add docs

* Add Binance exchange support

- Updated the environment configuration to include Binance as a selectable exchange option.
- Enhanced the README documentation to reflect the addition of Binance.
- Implemented the Binance exchange adapter and integrated it into the existing exchange framework.
- Modified the basis arbitrage strategy to support Binance alongside existing exchanges.
- Added tests to ensure proper functionality and integration of Binance within the trading system.

* Enhance README with detailed Binance exchange configuration

- Added comprehensive instructions for setting up Binance as an exchange option.
- Included environment variable specifications for API keys, market types, and trading symbols.
- Provided examples for both perpetual and spot trading strategies.
- Clarified the use of WebSocket and REST for the Binance adapter.

* Enhance exchange support and testing framework

- Added a new test suite for exchange contracts to ensure consistency and functionality across supported exchanges.
- Refactored exchange ID handling to utilize a centralized list of supported exchanges, improving maintainability.
- Updated CLI argument parsing and help documentation to reflect the new exchange structure.
- Introduced utility functions for validating supported exchanges and their display names.
- Enhanced the BasisApp and strategy runner to leverage the new exchange validation logic.
- Added a new test command for running exchange-related tests.

* Refactor exchange contract tests and update CLI commands

- Removed the trailing supported exchanges set and simplified the logic for trailing stop support in the exchange contract tests.
- Updated the test command for exchange contracts to exclude unnecessary tests, streamlining the testing process.
- Enhanced test descriptions for clarity and improved understanding of the functionality being tested.

src/config.ts

@@ -97,6 +97,7 @@ const SYMBOL_PRIORITY_BY_EXCHANGE: Record<SupportedExchangeId, { envKeys: string
   paradex: { envKeys: ["PARADEX_SYMBOL", "TRADE_SYMBOL"], fallback: "BTC/USDC" },
   nado: { envKeys: ["NADO_SYMBOL", "TRADE_SYMBOL"], fallback: "BTC-PERP" },
   standx: { envKeys: ["STANDX_SYMBOL", "TRADE_SYMBOL"], fallback: "BTC-USD" },
+  binance: { envKeys: ["BINANCE_SYMBOL", "TRADE_SYMBOL"], fallback: "BTCUSDT" },
 };
 
 export function resolveSymbolFromEnv(explicitExchangeId?: SupportedExchangeId | string | null): string {
@@ -312,6 +313,7 @@ export const basisConfig: BasisArbConfig = {
       const exchange = (process.env.EXCHANGE ?? "").trim().toLowerCase();
       if (exchange === "nado") return "BTC-PERP";
       if (exchange === "standx") return "BTC-USD";
+      if (exchange === "binance") return "BTCUSDT_PERP";
       return "ASTERUSDT";
     })()
   ),
@@ -321,6 +323,7 @@ export const basisConfig: BasisArbConfig = {
       const exchange = (process.env.EXCHANGE ?? "").trim().toLowerCase();
       if (exchange === "nado") return "KBTC";
       if (exchange === "standx") return "BTC-USD";
+      if (exchange === "binance") return "BTCUSDT";
       return "ASTERUSDT";
     })()
   ),