0xcadams/create stream api fix (#2094)

* fix: moved upload via URL to separate API schema and added docs

* fix: ref out and fix descriptions

* fix: refs

* fix: change stream create to singular

* fix: api schema 201

packages/api/src/schema/api-schema.yaml

@@ -2545,7 +2545,7 @@ paths:
               type: object
               $ref: "#/components/schemas/new-stream-payload"
       responses:
-        "200":
+        "201":
           description: Success
           content:
             application/json: