Exclude __tests__ from create-sei tsconfig

Add src/__tests__ to packages/create-sei/tsconfig.json "exclude" so test files are not included in compilation or emitted to dist. This prevents test artifacts from being compiled, reduces build noise, and speeds up the TypeScript build for the package.

Author: codebycarson

packages/create-sei/tsconfig.json

@@ -1,6 +1,6 @@
 {
 	"extends": "../../tsconfig.base.json",
-	"exclude": ["node_modules", "dist", "test"],
+	"exclude": ["node_modules", "dist", "test", "src/__tests__"],
 	"compilerOptions": {
 		"outDir": "./dist",
 		"target": "ES2020",