Module mandate_handlers 

HTTP handlers for the Mandate feature (Story 3.4 — FR7 INV-14).

Routes:

• POST /mandates — syndic / superadmin issues a mandate.
• GET /mandates?subject={u} — list active mandates for a user.
• GET /mandates/{id} — details of a mandate.
• POST /mandates/{id}/revoke — early revocation.

Auth: syndic / superadmin for write paths; the subject can also read their own mandates (?subject=<self>).

Structs

IssueMandateRequest

ListMandatesQuery

MandateResponse

get_mandate

issue_mandate

list_mandates

revoke_mandate