New document type - Contract

New document type - Contract: I’m using Invoice Ninja (self-hosted, version 5.12.28) and would like to add a new document type called “Contract.” Currently, Invoice Ninja supports only invoices and quotes, but I want to introduce contracts as an additional type of document. This new document should allow me to fill in contract details such as terms, payment conditions, and pricing, while being linked to a client so that the client’s information is automatically populated. It should also be able to generate a PDF using a custom template and appear in the client portal, where the client can view or...