What problems was I solving

The field-agent-ui-react library's Vite configuration contained a build: { minify: false } block inherited from a template, even though the project has no Nx build target. This made the configuration look like a buildable frontend app when it is actually only used for typechecking and Vitest tests.

What user-facing changes did I ship

None. This is a dead-code cleanup with no visible behavioral or output changes.

How I implemented it

Removed the four-line build object from architect/field-agent-ui/react/vite.config.ts while preserving the existing test configuration and merge with the workspace base Vitest config.

Description for the changelog

Removes unused build: { minify: false } configuration from architect/field-agent-ui/react/vite.config.ts. The field-agent-ui-react project has no Nx build target, so the Vite build options were never exercised.