/claim #71

Fixes #71.

Summary

• Add focused Vitest coverage for the interface template page entrypoint.
• Cover the no-root guard so the module does not hydrate when #root[data-client="template"] is absent.
• Cover the positive hydration path and assert hydrateRoot receives the server root.
• Add a non-overlapping interface primitive coverage slice for Avatar fallback/image states, Card anchor/div variants, Label required validation messaging, Loader sizing, Toggle size/selected classes, and Input prefix/suffix, invalid state, sizing, and custom class handling.
• Add public package entrypoint coverage for the root runtime API (StarbaseDB, StarbaseDBDurableObject) and documented plugin barrel exports.
• Add JSON import route coverage for malformed application/json payload shapes, invalid uploaded JSON files, column mapping inserts, and valid multipart JSON file imports.
• Assert malformed JSON import requests return the existing 400 validation response without calling executeOperation.

Validation

• pnpm exec vitest --run src/import/json.test.ts src/public-entrypoints.test.ts plugins/interface/pages/template/index.test.tsx plugins/interface/components/primitives.test.tsx -> 22 tests passed
• pnpm exec prettier --check src/import/json.test.ts src/public-entrypoints.test.ts plugins/interface/pages/template/index.test.tsx plugins/interface/components/primitives.test.tsx -> passed
• git diff --check -> passed

Note: I also ran the current full coverage command, pnpm exec vitest --run --coverage.enabled true --coverage.reporter=text; the baseline currently fails in existing src/rls/index.test.ts assertions before this change. This PR’s focused tests pass locally.