Fix this-binding in getTA and getUser - #320

getTA and getUser reach sibling functions through this, which only resolves when the function is called as a method:

const [m] = await TradingView.searchMarketV3("binance:BTCUSD");
await m.getTA(); // works

With a destructured import the receiver is lost. miscRequests.js is sloppy-mode CommonJS, so this falls back to globalThis and the lookup throws:

const { searchMarketV3 } = require("./main");
const [m] = await searchMarketV3("binance:BTCUSD");
await m.getTA(); // TypeError: this.getTA is not a function

tests/search.test.ts imports exactly that way, so both "gets TA for ..." tests fail on current main. They pass with this change.

Resolving through module.exports doesn't depend on how the caller got the function. Applied the same fix to getUser's redirect recursion, which would throw the same way on any redirect.