Form Module Improvements - Move delete button to last column (global UI safety)

Problem: Delete in middle column causes accidental clicks.

Actionables:

• Standardise delete action placement to right-most column.

• Add confirmation for destructive actions; support Undo when possible.

Success criteria:

• Fewer accidental deletions; consistent placement across modules.

Context: This proposal is part of the broader storyline AM-I-856.