change(tooling): typecheck in CI, update ts to 6

fix(ui-tui): fix ts 6 real type errors

change(tooling): use new node everywhere

ui-tui/package.json

@@ -7,7 +7,7 @@
     "dev": "npm run build --prefix packages/hermes-ink && tsx --watch src/entry.tsx",
     "start": "tsx src/entry.tsx",
     "build": "node scripts/build.mjs",
-    "type-check": "tsc --noEmit -p tsconfig.json",
+    "typecheck": "tsc --noEmit -p tsconfig.json",
     "lint": "eslint src/ packages/",
     "lint:fix": "eslint src/ packages/ --fix",
     "fmt": "prettier --write 'src/**/*.{ts,tsx}' 'packages/**/*.{ts,tsx}'",
@@ -26,7 +26,7 @@
   },
   "devDependencies": {
     "@eslint/js": "^9",
-    "@types/node": "^25.5.0",
+    "@types/node": "^24.12.0",
     "@types/react": "^19.2.14",
     "@typescript-eslint/eslint-plugin": "^8",
     "@typescript-eslint/parser": "^8",
@@ -40,7 +40,7 @@
     "globals": "^16",
     "prettier": "^3",
     "tsx": "^4.19.0",
-    "typescript": "^5.7.0",
+    "typescript": "^6.0.3",
     "vitest": "^4.1.3"
   }
 }

ui-tui/src/gatewayClient.ts

@@ -79,12 +79,8 @@ const asWireText = (raw: unknown): string | null => {
     return raw
   }
 
-  if (raw instanceof ArrayBuffer) {
-    return _wireDecoder.decode(raw)
-  }
-
-  if (ArrayBuffer.isView(raw)) {
-    return _wireDecoder.decode(raw)
+  if (raw instanceof ArrayBuffer || ArrayBuffer.isView(raw)) {
+    return _wireDecoder.decode(raw as ArrayBufferLike)
   }
 
   return null

ui-tui/src/lib/osc52.ts

@@ -53,7 +53,7 @@ export async function readOsc52Clipboard(querier: null | OscQuerier, timeoutMs =
     return null
   }
 
-  const timeout = new Promise<undefined>(resolve => setTimeout(resolve, timeoutMs))
+  const timeout = new Promise<void>(resolve => setTimeout(resolve, timeoutMs))
 
   const query = querier.send<OscResponse>({
     request: buildOsc52ClipboardQuery(),

ui-tui/tsconfig.build.json

@@ -1,7 +1,6 @@
 {
   "extends": "./tsconfig.json",
   "compilerOptions": {
-    "baseUrl": ".",
     "paths": {
       "@hermes/ink": ["src/types/hermes-ink.d.ts"]
     }

ui-tui/tsconfig.json

@@ -1,6 +1,7 @@
 {
   "compilerOptions": {
-    "target": "ES2022",
+    "target": "ES2023",
+    "lib": ["ES2023"],
     "module": "nodenext",
     "moduleResolution": "nodenext",
     "jsx": "react-jsx",