fix(protect): use public API imports in tests

Import inferIndexType and validateIndexType from public API (src/index)
instead of internal helper module. Use type inference from protect()
return type instead of importing ProtectClient from internal ffi module.

Author: tobyhede

packages/protect/__tests__/encrypt-query-stevec.test.ts

@@ -1,7 +1,8 @@
 import 'dotenv/config'
 import { describe, expect, it, beforeAll } from 'vitest'
 import { protect } from '../src'
-import type { ProtectClient } from '../src/ffi'
+
+type ProtectClient = Awaited<ReturnType<typeof protect>>
 import {
   jsonbSchema,
   metadata,

packages/protect/__tests__/infer-index-type.test.ts

@@ -1,8 +1,7 @@
 import { describe, expect, it } from 'vitest'
 import { csColumn, csTable } from '@cipherstash/schema'
+import { inferIndexType, validateIndexType } from '../src/index'
 import {
-  inferIndexType,
-  validateIndexType,
   inferQueryOpFromPlaintext,
   resolveIndexType,
 } from '../src/ffi/helpers/infer-index-type'