Fix MaProTable pagination reset issue in onSearchSubmit

[Copilot]

The MaProTable component's onSearchSubmit callback was not properly resetting pagination UI state when form parameters were modified. This caused the pagination component to remain on the previous page number after performing a search, even though the API request and data were correctly reset to page 1.

Problem

When users navigate to page 2 of a table and then perform a search:

onSearchSubmit: (form: Record<string, any>) => {
  form.page = 1 // This correctly resets the API request
  form.page_size = 10
  return form
}

The API would receive the correct page=1 parameter and return page 1 data, but the pagination component UI would still display "Page 2" causing user confusion.

Root Cause

The MaProTable component has two separate concerns:

1. Request Parameters - Modified correctly by onSearchSubmit
2. UI Pagination State - Not synchronized with modified parameters

When onSearchSubmit modifies form parameters, the changes are applied to the API request but the pagination component's internal currentPage state remains unchanged.

Solution

Added a workaround that manually synchronizes the pagination UI state after form parameter modification:

onSearchSubmit: (form: Record<string, any>) => {
  // Reset pagination parameters for API request
  form.page = 1
  form.page_size = form.page_size || 10
  
  // Manually reset pagination UI component
  setTimeout(() => {
    const tableRef = proTableRef.value?.getTableRef()
    if (tableRef) {
      tableRef.setPagination({ currentPage: 1 })
    }
  }, 100)
  
  return form
}

The setTimeout is necessary because MaProTable processes the onSearchSubmit return value asynchronously, and the pagination UI state needs to be updated after the component has processed the form changes.

Testing

To verify the fix:

1. Navigate to page 2 of the user management table
2. Enter search criteria and click search
3. Confirm that pagination resets to page 1 in both data and UI

This ensures proper user experience where the pagination component accurately reflects the current page state after search operations.

Fixes #699.

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