Update bunfig.toml to set test timeout and add type checking scripts to package.json

bunfig.toml

@@ -5,4 +5,4 @@ save = false
 "@techniker-me" = "https://registry-node.techniker.me"
 
 [test]
-preload = ["./test/setup.ts"]
+timeout = 5000

package.json

@@ -18,6 +18,9 @@
     "prelint:fix": "bun format",
     "lint": "eslint src/**/*.ts",
     "lint:fix": "eslint src/**/*.ts --fix",
+    "postlint:fix": "bun run typecheck",
+    "postlint": "bun run typecheck",
+    "typecheck": "tsc --noEmit",
     "build:node": "bun build src/index.ts --outdir dist/node --target node --format esm --production",
     "build:browser": "bun build src/index.ts --outdir dist/browser --target browser --format esm --production",
     "build:types": "tsc --emitDeclarationOnly --outDir dist/types",