feat(task): auto-inject scheduling params into script template via scheduling_map

Add scheduling_map field to ParameterSchema so Application creators can
declare that a parameter (e.g. NP) maps to a scheduling field (e.g. cpus).
The backend auto-injects the scheduling value into script template variables
before rendering, eliminating duplicate user input. The frontend hides
mapped parameters from the form and injects their values on submit.

internal/service/script_utils.go

@@ -123,3 +123,28 @@ func RandomSuffix(n int) string {
 	}
 	return string(b)
 }
+
+func ResolveSchedulingMap(field string, task *model.Task) string {
+	switch field {
+	case "cpus":
+		return derefInt32ToStr(task.Cpus)
+	case "memory_per_node":
+		return derefInt64ToStr(task.MemoryPerNode)
+	case "memory_per_cpu":
+		return derefInt64ToStr(task.MemoryPerCpu)
+	case "nodes":
+		return derefStr(task.Nodes)
+	case "tasks":
+		return derefInt32ToStr(task.Tasks)
+	case "cpus_per_task":
+		return derefInt32ToStr(task.CpusPerTask)
+	case "partition":
+		return task.Partition
+	case "time_limit":
+		return derefInt32ToStr(task.TimeLimit)
+	case "qos":
+		return derefStr(task.QOS)
+	default:
+		return ""
+	}
+}