fix: validate if from and to time are present on submission of job card (#47325)

(cherry picked from commit 7499c25a3c)

erpnext/manufacturing/doctype/job_card/job_card.py

@@ -705,6 +705,12 @@ class JobCard(Document):
 					bold("Job Card"), get_link_to_form("Job Card", self.name)
 				)
 			)
+		else:
+			for row in self.time_logs:
+				if not row.from_time or not row.to_time:
+					frappe.throw(
+						_("Row #{0}: From Time and To Time fields are required").format(row.idx),
+					)
 
 		precision = self.precision("total_completed_qty")
 		total_completed_qty = flt(