fix(launcher): add no-op check script so bun run --workspaces check passes

bun run --workspaces enumerates apps/launcher even though it is excluded
from the workspace install via the "!apps/launcher" pattern, and errors
when a workspace lacks a 'check' script. Add a self-documenting no-op
(the launcher is a Rust/Tauri app with no TypeScript to typecheck).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: vibegui

apps/launcher/package.json

@@ -8,7 +8,8 @@
     "dev": "tauri dev",
     "build": "tauri build",
     "tauri": "tauri",
-    "icons": "tauri icon ./assets/icon-source.png"
+    "icons": "tauri icon ./assets/icon-source.png",
+    "check": "echo 'launcher is a Rust/Tauri app with no TS; run cargo check in src-tauri'"
   },
   "devDependencies": {
     "@tauri-apps/cli": "^2.9.2"