fix(integrations): catch OverflowError on a priority: .inf in add/remove (#3589)

IntegrationCatalog.add_catalog and remove_catalog re-validate the
existing catalog entries' priorities inline, separately from the base
loader. Both did `int(raw_priority)` under `except (TypeError,
ValueError)`, so a `priority: .inf` (float('inf')) raised OverflowError:
add_catalog leaked a raw traceback instead of IntegrationValidationError,
and remove_catalog crashed while building the display order.

Add OverflowError to both handlers, matching the base loader (#3525) and
the workflow/step loaders (#3526). add_catalog now raises
IntegrationValidationError; remove_catalog falls back to positional order
like the other non-integer priorities.

Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>

src/specify_cli/integrations/catalog.py

@@ -429,7 +429,8 @@ class IntegrationCatalog(CatalogStackBase):
                     )
                 try:
                     normalized_priority = int(raw_priority)
-                except (TypeError, ValueError):
+                except (TypeError, ValueError, OverflowError):
+                    # OverflowError: int(float("inf")) — a ``priority: .inf``.
                     raise IntegrationValidationError(
                         f"Invalid catalog entry at index {idx} in {config_path}: "
                         f"'priority' must be an integer, got "
@@ -537,7 +538,8 @@ class IntegrationCatalog(CatalogStackBase):
             else:
                 try:
                     priority = int(raw_priority)
-                except (TypeError, ValueError):
+                except (TypeError, ValueError, OverflowError):
+                    # OverflowError: int(float("inf")) — a ``priority: .inf``.
                     priority = yaml_idx + 1
             priority_pairs.append((priority, yaml_idx))
         if not priority_pairs: