ci(node): check docs in CI (#2084)

* Make `npm run docs` fail if there are any warnings. This will catch
items missing from the API reference.
* Add a check in our CI to make sure `npm run dos` runs without warnings
and doesn't generate any new files (indicating it might be out-of-date.
* Hide constructors that aren't user facing.
* Remove unused enum `WriteMode`.

Closes #2068

docs/src/js/namespaces/embedding/interfaces/EmbeddingFunctionCreate.md

@@ -0,0 +1,27 @@
+[**@lancedb/lancedb**](../../../README.md) • **Docs**
+
+***
+
+[@lancedb/lancedb](../../../globals.md) / [embedding](../README.md) / EmbeddingFunctionCreate
+
+# Interface: EmbeddingFunctionCreate<T>
+
+## Type Parameters
+
+• **T** *extends* [`EmbeddingFunction`](../classes/EmbeddingFunction.md)
+
+## Methods
+
+### create()
+
+```ts
+create(options?): CreateReturnType<T>
+```
+
+#### Parameters
+
+* **options?**: `T`\[`"TOptions"`\]
+
+#### Returns
+
+[`CreateReturnType`](../type-aliases/CreateReturnType.md)&lt;`T`&gt;