teal-start

As a Backend Developer, I need to define the data model for storing calculations, including fields for input, operation, result, and timestamp, to persist calculation history.

As a Backend Developer, I need to set up authentication and role-based access control (RBAC) to ensure secure access to the calculator application, allowing only authorized users to perform operations.

As a frontend developer, implement the Navbar section for the Calculator page. This section provides a shared project navigation shell with a brand link and project page links. The Navbar should be responsive, with a sticky position at the top of the page. The design includes a brand icon and name 'CalcPro', and a link to the Calculator page. Ensure the navigation is responsive and the active link is highlighted. Acceptance criteria: The Navbar component must render exactly once on the Calculator page; it should include a brand link and a Calculator page link; the design must match the provided CSS with responsive behavior; no backend integration is required; access is shared for all personas. Page access: shared by all personas (User). This is verification context and does not request role-specific implementation.

As a frontend developer, implement the Footer section for the Calculator page. This section provides a shared project footer shell with brand and legal content. The Footer should be consistent across all pages and include the brand name 'CalcPro' and copyright information. Acceptance criteria: The Footer component must render exactly once on the Calculator page; it should include brand and copyright information; the design must match the provided CSS with responsive behavior; no backend integration is required; access is shared for all personas. Page access: shared by all personas (User). This is verification context and does not request role-specific implementation.