fix: neutralize catalog table title, handle non-dict cache metadata

Author: mnriem

src/specify_cli/__init__.py

@@ -1806,7 +1806,7 @@ def integration_list(
             console.print("[yellow]No integrations found in catalog.[/yellow]")
             return
 
-        table = Table(title="Integration Catalog (built-in + community)")
+        table = Table(title="Integration Catalog")
         table.add_column("ID", style="cyan")
         table.add_column("Name")
         table.add_column("Version")

src/specify_cli/integrations/catalog.py

@@ -247,7 +247,7 @@ def _fetch_single_catalog(
                 age = (datetime.now(timezone.utc) - cached_at).total_seconds()
                 if age < self.CACHE_DURATION:
                     return json.loads(cache_file.read_text(encoding="utf-8"))
-            except (json.JSONDecodeError, ValueError, KeyError, TypeError):
+            except (json.JSONDecodeError, ValueError, KeyError, TypeError, AttributeError):
                 # Cache is invalid or stale metadata; delete and refetch from source.
                 try:
                     cache_file.unlink(missing_ok=True)