Add Nado documentation and examples, including new API endpoints, FAQs, and guides for using the TypeScript SDK. Update .env.example with additional configuration options.

docs/nado/developer-resources/api/gateway/queries.md

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+# Queries
+
+All queries go through the following endpoint; the exact details of the query are specified by query params or `Websocket` messages.
+
+* **Websocket**: <mark style="color:orange;">`WEBSOCKET [GATEWAY_WEBSOCKET_ENDPOINT]`</mark>
+* **REST**: <mark style="color:green;">`GET [GATEWAY_REST_ENDPOINT]/query`</mark> or <mark style="color:orange;">`POST [GATEWAY_REST_ENDPOINT]/query`</mark>
+
+## Overview
+
+### **Amounts and Prices**
+
+In general, amounts come back normalized to 18 decimal places. Meaning that for a balance of 1 USDT0, regardless of the number of decimals USDT0 has on-chain, a value of 1e18 will be returned.
+
+Prices are in <mark style="color:red;">`x18`</mark>, so if the price of one wBTC is $20,000, regardless of the number of decimals wBTC has on-chain, the price will be returned as <mark style="color:red;">`20,000 * 1e18`</mark>.
+
+## API Response
+
+All `queries` return in the format:
+
+```json
+{
+  "status": "success" | "failure",
+  "data"?: {data},
+  "error"?: "{error_msg}",
+  "error_code"?: {error_code},
+  "request_type": "{request_type}"
+}
+```