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Focusing any text field on a SpoolBuddy screen (inventory Search, or the Search / Color Name / Brand fields on write-tag New Spool) blanked the UI with React error #130 ("Element type is invalid ... but got: object"). It hit both internal and Spoolman inventories, so it was not data-specific. The SpoolBuddy shell mounts VirtualKeyboard, an on-screen keyboard that pops up on focusin for any input -- so every field on every SpoolBuddy page tripped it, while the main app (no on-screen keyboard) was fine. VirtualKeyboard imports the default export of react-simple-keyboard, a CommonJS package; under the current bundler's CJS->ESM interop that default resolves to the module namespace object ({ KeyboardReact, default }) rather than the component, so <Keyboard> renders an object as an element type and React throws. vitest's interop returns the real component, so it only manifested in the browser build -- a runtime, not a type, problem. Add a small resolveInteropDefault helper that unwraps such an interop-wrapped default: it returns the value as-is when already a usable element type (function/class, tag string, or a $$typeof-marked forwardRef/memo/lazy) and otherwise falls through to .default and named exports. VirtualKeyboard resolves the real component through it.