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@simlin/app

Full-featured system dynamics application. Browse existing models, create or import new models, login/logout.

For global development standards, see the root CLAUDE.md. For build/test/lint commands, see docs/dev/commands.md. For product design context (users, brand, design principles, tokens), see docs/dev/design.md.

Key Files

  • App.tsx -- Root application component and routing. Surfaces /session exchange failures as loginError on the Login screen (the server answers a JSON {error} envelope; parsing is defensive so a proxy's non-JSON body can't make the failure look like a silent no-op, issue #927), and passes user?.id to HostedWebEditor as authenticatedUserId -- the change-signal that lets a deep link to a private project retry a load that raced session restoration (issue #933)
  • Home.tsx -- Home/dashboard page
  • Login.tsx -- Authentication UI
  • NewProject.tsx -- New project creation flow
  • NewUser.tsx -- New user onboarding
  • index.tsx -- Application entry point
  • index-component.tsx -- The sd-model custom element, embedding HostedWebEditor in a closed shadow root. Full lifecycle (issue #931): the shadow root attaches exactly once and is reused across reconnects (SPA hosts move nodes, firing disconnected/connected synchronously); disconnect unmounts the React root so the Editor disposes its controller and engine; a username/projectname attribute change while mounted is a project swap and remounts (a React root can't render after unmount, so every mount builds a fresh root); a repeat script evaluation is a no-op -- the first customElements.define wins, including its captured script-origin base URL