Removes properties and cross-validation file path definitions from metadata JSON files. Properties file paths are now defined as a module-level constant in input_manager.py, and cross-validation file paths are moved to the task configuration JSON files.

Context

Issue(s) closed by this pull request: closes #2859.

What

• Removed the "properties" file blob entry from all metadata JSON files (freestall_e2e_metadata.json, no_animal_e2e_metadata.json, open_lot_e2e_metadata.json, example_freestall_dairy_metadata.json, example_no_animal_metadata.json, example_open_lot_metadata.json, available_simulations_metadata.json, end_to_end_testing_tm_metadata.json, herd_init_metadata.json, update_end_to_end_testing_tm_metadata.json, task_manager_metadata.json).
• Removed "properties" from REQUIRED_FILE_BLOBS in input_manager.py.
• Added a module-level constant PRROPERTIES_FILE_PATHS in input_manager.py that maps property file names to their Path objects (default.json, tasks_properties.json, commodity_properties.json).
• Updated _load_properties in InputManager to iterate over the hardcoded PRROPERTIES_FILE_PATHS instead of reading paths from the metadata.
• Removed "cross-validation" key from all metadata JSON files.
• Added "cross_validation_file_paths" as a new field in task configuration JSON files (available_simulation_tasks.json, end_to_end_testing_task.json, example_freestall_task.json, example_no_animal_task.json, example_open_lot_task.json, single_run.json).
• Updated start_data_processing to accept a cross_validation_file_paths: list[str] | None parameter and pass it to _cross_validate_data.
• Updated _cross_validate_data to receive cross_validation_file_paths as a parameter instead of reading it from self.__metadata.
• Updated TaskManager.start and handle_input_data_audit to pass cross_validation_file_paths through to start_data_processing.
• Added "default" to optional_array_property_keys in DataValidator._metadata_array_validator.
• Updated input/metadata/properties/tasks_properties.json with the cross_validation_file_paths property, where it is a nullable array of strings with default being null.
• Updated unit tests in test_input_manager.py and test_task_manager.py.

Why

Previously, properties and cross-validation file paths were embedded inside each metadata JSON file. This led to issue #2859. Properties file paths are the same across all simulations, so hardcoding them as a constant simplifies metadata files and eliminates redundancy. Moving cross-validation file paths to the task configuration files gives each task explicit control over which cross-validation rules apply, which is a more appropriate location since different tasks may require different validation rules.

How

For properties, the _load_properties method now reads from the PRROPERTIES_FILE_PATHS constant dictionary instead of extracting paths from self.__metadata["files"]["properties"]. The "properties" entry is no longer needed in metadata files and has been removed, along with the del self.__metadata["files"]["properties"] cleanup step.

For cross-validation, the "cross-validation" key is removed from metadata files entirely. Instead, each task JSON file now includes a "cross_validation_file_paths" field (a list of file path strings, or an empty list). This value flows through TaskManager.handle_input_data_audit → args["cross_validation_file_paths"] → InputManager.start_data_processing → _cross_validate_data → _load_cross_validation.

Test plan

• Updated unit tests in test_input_manager.py to reflect the new cross_validation_file_paths parameter in start_data_processing and the removal of properties from metadata.
• Updated unit tests in test_task_manager.py to pass cross_validation_file_paths in the appropriate call assertions.

Input Changes

• Updated: input/metadata/properties/tasks_properties.json.
• Added: "cross_validation_file_paths" field to all task JSON files (available_simulation_tasks.json, end_to_end_testing_task.json, example_freestall_task.json, example_no_animal_task.json, example_open_lot_task.json, single_run.json).
• Deleted: "properties" file blob entry from all metadata JSON files.
• Deleted: "cross-validation" key from all metadata JSON files.

Output Changes

• N/A

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