[address] modal for battery flow

[divazbozz]

Implementation

• bring the address confirmation modal to battery flow

improvement to both battery & energy only flow

• fix a problem where user x-out and click the same address selection without typing => this ensures the modal always pop up correctly
  • see inline comment for how this works

Testing

Screen.Recording.2026-04-01.at.4.04.41.PM.mov

Followups

• I will work on unifying the battery flow & energy flow next week;

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✨ Finishing Touches

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[devin-ai-integration]

Devin Review found 1 potential issue.

View 5 additional findings in Devin Review.

[devin-ai-integration]

Devin Review found 1 new potential issue.

⚠️ 1 issue in files not directly in the diff

⚠️ AddressConfirmModal shows validation error styling and message immediately on mount, before user interaction (src/address-search/modal/AddressConfirmModal.tsx:62)

showLine2Warning at src/address-search/modal/AddressConfirmModal.tsx:62 is computed directly as requiresSubpremise && !line2.trim() on every render. Since the modal only opens when requiresSubpremise is true and line2 is typically empty (initialized from googleAddressComponents.line2 || ""), the error border, aria-invalid="true", and the "Please enter your apartment or unit number" message all display immediately when the modal appears — before the user has had any chance to type. The old inline code in EnergyOnlyAddressEntryFlow used a separate line2Error state (initialized to false) that was only set to true after the user attempted to submit without filling in line2. This is a UX regression: showing form validation errors before any user interaction violates standard form UX patterns.

View 7 additional findings in Devin Review.