2-3 polished concepts, depending how needy you are, and several brain dump of ideas, exploration and possibilities. Concept can be just screens or user flows, prototype or animated video, depends on project (and how much you are paying 😎). All in Figma or your preferred design tool.

This would be more than just screens on Figma, you'd get extremely polished designs with guides for your developer that it will make them happy. Clearly marked and labeled, all made in auto-layout, using variables and industry standard color and typography styles.

I will be a friend to your developer, and would be there to support him with whatever they need to transition the design into production. Support in terms of assets, fonts, styles, code snippets. Iterate designs, if something is too ambitious to develop

User journeys are better if they are explained through a prototype. So i will add in several short prototypes, explaining the user journey. These would be simple click and move forward UI paths without animation but enough to save you from 100s of meetings, explaining people how your product works.

This of course comes with everything i design. A basic component library is to be expected, but if its a more complex and larger application then a design system, component library in Figma or any design tool would come included in the package, that can be used to development.