Cannot find name 'expect'.

JSX element implicitly has type 'any' because no interface 'JSX.IntrinsicElements' exists.

Cannot use JSX unless the '--jsx' flag is provided.

JSX element implicitly has type 'any' because no interface 'JSX.IntrinsicElements' exists.

Property 'children' is missing in type '{}' but required in type 'AppShellProps'.

Cannot use JSX unless the '--jsx' flag is provided.

Cannot find name 'it'. Do you need to install type definitions for a test runner? Try `npm i --save-dev @types/jest` or `npm i --save-dev @types/mocha` and then add 'jest' or 'mocha' to the types field in your tsconfig.

Cannot find name 'describe'. Do you need to install type definitions for a test runner? Try `npm i --save-dev @types/jest` or `npm i --save-dev @types/mocha` and then add 'jest' or 'mocha' to the types field in your tsconfig.

Module './app-shell' was resolved to '/home/runner/work/hypertool-mcp/hypertool-mcp/src/management-ui/src/components/layout/app-shell.tsx', but '--jsx' is not set.