fix(ctrip): support current flight card DOM

[dxxbb]

Summary

• support Ctrip's current [data-testid^="flight-item-"] flight cards
• preserve compatibility with the legacy .flight-list > span > div DOM
• parse airline, flight number, airports, terminal, price, currency, and cabin from current stable field IDs
• add a JSDOM regression case based on the current rendered card structure

Root cause

ctrip/flight waited for the legacy card selector, so the command timed out even when the current page had rendered flight results. The new DOM also places the cross-day marker between arrival time and airport and renders the price amount before the currency symbol, so changing only the outer selector would silently produce incorrect fields.

Impact

The command now recognizes both DOM variants and keeps the existing output schema and typed error behavior unchanged.

Validation

• npx vitest run --project adapter clis/ctrip/ctrip.test.js — 70 passed
• npm run typecheck — passed
• npm run check:typed-error-lint — no new violations
• npm run check:silent-column-drop — no new violations
• node dist/src/main.js validate ctrip/flight — passed
• live source run: BJS → SHA, 2026-07-18, returned complete flight rows with prices

Refs #1481