Revert type import, add tests to CI.

.github/workflows/ci.yaml

@@ -41,6 +41,9 @@ jobs:
 
             - name: Build
               run: npm run build
+
+            - name: Test
+              run: npm test
     docs:
         needs: ci
         runs-on: ubuntu-latest

package.json

@@ -21,6 +21,7 @@
 		"format:check": "prettier --check .",
 		"format": "prettier --write .",
 		"lint": "tsc --noEmit && eslint src",
+		"test": "tsx --test",
 		"build": "tsc -p tsconfig.json",
 		"build:docs": "typedoc",
 		"prepublishOnly": "npm run build"

src/internal/struct.ts

@@ -1,6 +1,5 @@
 import type { ClassLike } from '../types.js';
 import type * as primitive from './primitives.js';
-import './struct-symbols.js';
 
 // @ts-expect-error 2322
 Symbol.struct_init ||= Symbol('struct_init');