User Onboarding Flow

Have user fill in successive information, with suggestions as they flow through.

Example:

1. User fills in Age, Savings, and Income, and clicks next
2. Next input is Retirement date, which is auto-filled with a suggested date based on info from the first page
3. If the user chooses an earlier date than suggested, next investment inputs are modified to be more aggressive based on that goal

No files, tests, or entry points are identified. First locate the existing user-input flow and determine how successive pages, retirement-date suggestions, and investment inputs are represented. Done should include the described onboarding sequence, suggestions based on prior answers, and more aggressive investment inputs when an earlier retirement date is selected.

Written by the indexing model from the issue text.