- Wire useDatepicker into IntlUtil and switch jalalian display locale
to fa-IR for clean "1405/07/03 12:00:00" output (drops the awkward
"AP" era suffix that "<lang>-u-ca-persian" produced)
- Drop in persian-calendar-suite for the jalali date picker, with a
light/dark/ultra theme map and CSS overrides so the inline-styled
input stays readable and bg matches the surrounding container
- Force LTR on the picker input so "1405/03/07 00:00" reads naturally
- Pass calendar setting through ClientInfoModal, ClientsPage Duration
tooltip, and ClientFormModal's expiry picker
- Heuristic toMs() in ClientInfoModal so GORM's autoUpdateTime seconds
render as a real date instead of "1348/11/01"
- Persist UpdatedAt on the ClientRecord row in client_service.Update;
previously only the inbound settings JSON was bumped, so the panel
never saw a fresh updated_at after editing a client
