domain-skills/frontier: full checkout flow

[bilaldaqqah]

End-to-end booking on flyfrontier.com — 7-stage funnel all the way to the payment form.

Flow

/ → /Flight/Select → /Passengers/Edit → /Bundles/Index → /SeatMap/Index → /Bags/Index → /Extras/Add → /Payment/New

Highlights

• No cold deep-link: booking.flyfrontier.com/Flight/InternetBookingEngine?o1=PHL&d1=MCO&... returns 404. Must go through the homepage widget.
• Discount Den bypass: cheapest fares push a DD upsell slider. .close-icon does nothing; only .no-thanks-dd-button advances.
• Hopper iframe on Extras: Disruption Assistance is a fintech-portal.hts.hopper.com iframe. Must attach via iframe_target(...) and pick #none there before Extras submits.
• jQuery UI datepicker: setting .value is ignored — use $('#departureDate').datepicker('setDate', ...).
• Native <input> PAN/CVV — no tokenization iframe (#card_number, #card_cvv, #card_expiration_month|year).
• Bags page throws an inline error if both carry-on and checked bag radios aren't selected.

Validated against PHL→MCO $39 "web-exclusive" fare, total $43.98 at payment stage.

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Summary by cubic

Adds a new domain-skill guide for Frontier’s 7-step checkout (Home → Select → Passengers → Bundles → SeatMap → Bags → Extras → Payment) with stable selectors, modal bypasses, and Hopper iframe handling for reliable automation.

• New Features
  • URL map and stable selectors for all stages, including continue buttons and label-click requirements.
  • Discount Den and other sliders: detect visible sliders and dismiss via .no-thanks-dd-button (close icon is a no-op).
  • Special handling: homepage search has no form and uses jQuery UI datepicker; bags require both carry-on and checked; Hopper Disruption Assistance in iframe#iframe_ExtrasDisruptionAssistance on fintech-portal.hts.hopper.com.
  • Payment and ops notes: plain DOM card fields with specific value formats (e.g., prefixed state values), viewport guidance (1280×900), and note that deep links 404—start on the homepage.

^{Written for commit 0bcd44f. Summary will update on new commits.}

[browser-harness-review]

✅ Skill review passed

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[cubic-dev-ai]

No issues found across 1 file