Root cause: V5 was missing required attributes that V2 had on the Add
Adjustment form. When a user submitted without selecting a project (for
types that require one), the server rejected it with messages.error()
but the error was invisible before the MESSAGE_TAGS fix. Combined with
no client-side validation for workers, the form would silently create
0 adjustments or redirect with no visible feedback.
Fixes:
- Add required attribute to Project select (toggles off for Loan types)
- Add client-side validation: blocks submit if no workers selected
- Add backend validation: returns error if no workers in POST data
- Add "Select All" / "Clear" links for worker checkboxes (matches V2)
- Add "X worker(s) selected" counter for visual feedback
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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