move JWT validation to package

packages/jwt/tsconfig.json

@@ -0,0 +1,8 @@
+{
+	"extends": "@repo/typescript-config/workers-lib.json",
+	// jwt has no vitest of its own, so pull in only the Workers ambient types
+	// (drop @cloudflare/vitest-pool-workers/types that workers-lib.json adds).
+	"compilerOptions": {
+		"types": ["@cloudflare/workers-types"]
+	}
+}