fix(binance): limit userscripts to futures trading pages

[jackhai9]

Futures landing pages such as /zh-CN/futures/home were parsed as trading symbols, allowing CMC, trading-data, and strategy UI to appear outside a contract page. Restrict the shared route parser to the scripts' supported USDT/USDC perpetual routes, preserve orderbook initialization when SPA navigation enters a trading page, and remove Strategy31 status and pending chart work when leaving trading routes.

This releases orderbook 2.7.216, trading-data 1.1.17, CoinMarketCap-data 0.1.18, Strategy27 0.6.7, Strategy29 0.5.7, and Strategy31 0.1.1. Existing install/update URLs are unchanged. The accompanying blank-page incident report records a separate Binance startup stall; this change does not claim to fix that stall.

Validation on unchanged release inputs:

• Full Node suite: 2,122 tests passed.
• New Playwright route scenarios: 2 passed, covering landing-page startup, repeated SPA navigation, single initialization, and panel removal without order submission or cancellation.
• All six builds, test lint, syntax checks, and git diff --check passed.
• Independent read-only code review approved the final implementation.

Real Tampermonkey installation, loaded-source identity, and post-update production UI have not been verified for these new versions. Fixture coverage does not certify the current native TradingView build.