added fixture breadth and regression coverage

tests/test_repository_scanner.py

@@ -1,5 +1,6 @@
 from repo_registry.repo_scanning.scanner import DeterministicScanner
 from tests.fixtures import (
+    write_javascript_typescript_package_repo,
     write_misleading_docs_repo,
     write_python_cli_repo,
     write_readme_only_repo,
@@ -71,3 +72,18 @@ def test_scanner_misleading_docs_fixture_stays_observational(tmp_path):
     assert [(fact.kind, fact.name, fact.path) for fact in result.facts] == [
         ("documentation", "README", "README.md")
     ]
+
+
+def test_scanner_javascript_typescript_package_records_package_facts(tmp_path):
+    repo = write_javascript_typescript_package_repo(tmp_path)
+
+    result = DeterministicScanner().scan(repo)
+
+    facts = {(fact.kind, fact.name, fact.path) for fact in result.facts}
+    assert ("language", "TypeScript", "") in facts
+    assert ("manifest", "package.json", "package.json") in facts
+    assert ("framework", "React", "package.json") in facts
+    assert ("framework", "Vite", "package.json") in facts
+    assert ("framework", "Vitest", "package.json") in facts
+    assert ("interface", "possible API surface", "src/api/routes.ts") in facts
+    assert ("test", "routes.spec.ts", "src/api/routes.spec.ts") in facts