ifc-converter: pass test script with no tests yet (#327)

The package has no test files yet, so `bun test` exits 1 ("No tests
found!") and fails CI. Add --pass-with-no-tests so the task stays green
until real tests land, at which point they run normally.

Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

packages/ifc-converter/package.json

@@ -19,7 +19,7 @@
   "scripts": {
     "build": "tsc --build",
     "dev": "tsc --build --watch",
-    "test": "bun test",
+    "test": "bun test --pass-with-no-tests",
     "prepublishOnly": "npm run build"
   },
   "dependencies": {