Single Bulk Import for Travel and all types. Merged

Feature Request: Single Bulk Import for Travel and All Import Types

Summary:
Enable users to complete one consolidated import that includes travel and all supported import types in a single file. Users should be able to fill out all relevant tables within the import template and submit them together, allowing the system to process the full data set at one time.

Problem Statement:
Currently, importing different data types may require separate files or multiple import actions, which creates extra manual effort and increases the chance of errors, missed steps, or incomplete data submission. This process is inefficient for users managing related records that should be loaded together, especially when they need to coordinate travel data alongside other import types.

Proposed Solution:
Provide a single bulk import capability that supports travel and all other applicable import types within one import file.
Allow users to populate multiple tables or sections in the template, each corresponding to a different import type, and submit the file in one action.
Ensure the system validates each table appropriately while processing the full file as one import event.
Provide clear feedback on successful imports, validation errors, and any records or sections that fail so users can quickly correct and resubmit as needed.
Maintain data integrity by ensuring related data across import types is processed consistently and without requiring separate manual imports.

Benefits:
Reduces the time and effort required to complete multi-type imports.
Minimizes the risk of user error caused by repetitive or separate import processes.
Improves efficiency by allowing related data to be submitted and processed together.
Creates a more streamlined and user-friendly import experience.
Supports better data consistency across imported record types.