form spec generators: fix transform wrapper gaps

The Age generator and enable_deprecated_cascading_elements wrap their
form spec in a TransformDataForLegacyFormatOrRecomposeFunction but left
the wrapper without title and help text, so consumers reading the top
level spec - like the global settings page - rendered untitled rows.

The Age generator's from_disk transform asserted on non-integer disk
values, crashing on corrupted stored data where the legacy Age raised a
clean validation error. Raising ValueError instead lets the transform
visitor report it as a proper validation failure.

Change-Id: I50d29840f903473ec20adb383d3f34f3c94b2334

Author: MakeilaLun

cmk/gui/form_specs/generators/age.py

@@ -24,7 +24,8 @@ def float_to_int(value: object) -> int:
         return int(value)
 
     def int_to_float(value: object) -> float:
-        assert isinstance(value, int)
+        if not isinstance(value, int):
+            raise ValueError(f"Expected an integer, got {value!r} of type {type(value).__name__}")
         return float(value)
 
     if displayed_magnitudes is None:
@@ -36,6 +37,8 @@ def int_to_float(value: object) -> float:
         ]
 
     return TransformDataForLegacyFormatOrRecomposeFunction(
+        title=title,
+        help_text=help_text,
         wrapped_form_spec=TimeSpan(
             title=title,
             help_text=help_text,

cmk/gui/form_specs/generators/cascading_choice_utils.py

@@ -59,6 +59,8 @@ def from_disk(value: object) -> tuple[str, Any]:
         return reversed_mapping[value].name_in_form_spec, True
 
     return TransformDataForLegacyFormatOrRecomposeFunction(
+        title=wrapped_form_spec.title,
+        help_text=wrapped_form_spec.help_text,
         wrapped_form_spec=wrapped_form_spec,
         from_disk=from_disk,
         to_disk=to_disk,