test(server): add validation test of api:notes/create (#10090)

* fix(server): notes/createのバリデーションが効いていない
Fix #10079

Co-Authored-By: mei23 <m@m544.net>

* anyOf内にバリデーションを書いても最初の一つしかチェックされない

* ✌️

* wip

* wip

* ✌️

* RequiredProp

* Revert "RequiredProp"

This reverts commit 7469390011.

* add api:notes/create

* fix lint

* text

* ✌️

* improve readability

---------

Co-authored-by: mei23 <m@m544.net>
Co-authored-by: syuilo <Syuilotan@yahoo.co.jp>

packages/backend/test/tsconfig.json

@@ -33,11 +33,12 @@
 		"lib": [
 			"esnext"
 		],
-		"types": ["jest"]
+		"types": ["jest", "node"]
 	},
 	"compileOnSave": false,
 	"include": [
 		"./**/*.ts",
+		"../src/**/*.test.ts",
 		"../src/@types/**/*.ts",
 	]
 }