Retrieves profile information for an individual identified by an 18-char CURP. Includes estimated_monthly_income, an estimated net monthly income in MXN derived from the last 90 days of invoices and employment records, falling back to up to 12 months of salary data when that window has none.

Also includes tenure, the verifiable job tenure with the current employer, only produced for employed profiles: a floor bucket (3_months_plus to 12_months_plus), never an exact figure, or less_than_3_months when the evidence of the current employer covers less than 3 months.