Module aster.finance.loan.

Define LoanApplication has applicantId, amount, termMonths, purpose.

Define ApplicantProfile has age, creditScore, annualIncome, monthlyDebt, yearsEmployed.

Define LoanDecision has approved, reason, approvedAmount, interestRate, termMonths.

Rule evaluateLoanEligibility given application, applicant, produce:
  Return LoanDecision with approved set to true, reason set to "OK", approvedAmount set to 0, interestRate set to 0, termMonths set to 0.