fix(tests): isolate preset catalog search test from community catalog network calls

test_search_with_cached_data asserted exactly 2 results but was getting 4
because _get_merged_packs() queries the full built-in catalog stack
(default + community). The community catalog had no local cache and hit
the network, returning real presets. Writing a project-level
preset-catalogs.yml that pins the test to the default URL only makes
the count assertions deterministic.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: iamaeroplane

tests/test_presets.py

@@ -1175,6 +1175,16 @@ def test_search_with_cached_data(self, project_dir):
         catalog = PresetCatalog(project_dir)
         catalog.cache_dir.mkdir(parents=True, exist_ok=True)
 
+        # Restrict to default catalog only — prevents community catalog network calls
+        # which would add extra results and make the count assertions flaky.
+        (project_dir / ".specify" / "preset-catalogs.yml").write_text(
+            f"catalogs:\n"
+            f"  - url: \"{PresetCatalog.DEFAULT_CATALOG_URL}\"\n"
+            f"    name: default\n"
+            f"    priority: 1\n"
+            f"    install_allowed: true\n"
+        )
+
         catalog_data = {
             "schema_version": "1.0",
             "presets": {