chore: add vitest dependencies, scripts

Author: idleberg

package.json

@@ -41,6 +41,7 @@
 		"@types/gulp": "^4.0.18",
 		"@types/node": "^24.10.0",
 		"@types/vinyl": "^2.0.12",
+		"@vitest/coverage-v8": "^4.0.8",
 		"concurrently": "^9.2.1",
 		"gulp": "^5.0.1",
 		"knip": "^5.68.0",
@@ -50,7 +51,9 @@
 		"tsdown": "^0.16.1",
 		"tsm": "^2.3.0",
 		"typescript": "^5.9.3",
-		"uvu": "^0.5.6"
+		"uvu": "^0.5.6",
+		"vinyl": "^3.0.1",
+		"vitest": "^4.0.8"
 	},
 	"peerDependencies": {
 		"gulp": ">=4.0.2 || ^5"
@@ -64,7 +67,9 @@
 		"lint:publint": "publint",
 		"prepack": "npm run build",
 		"prepare": "lefthook install",
-		"test": "uvu -r tsm e2e"
+		"test": "concurrently --prefix-colors magenta,cyan npm:test:*",
+		"test:unit": "vitest run",
+		"test:e2e": "uvu -r tsm e2e"
 	},
 	"packageManager": "pnpm@10.17.0+sha512.fce8a3dd29a4ed2ec566fb53efbb04d8c44a0f05bc6f24a73046910fb9c3ce7afa35a0980500668fa3573345bd644644fa98338fa168235c80f4aa17aa17fbef"
 }