refactor: unify backend and frontend servers (#3)

* refactor: unify backend and frontend servers

* refactor: correct paths for openapi & drizzle

* refactor: move api-client to client

* fix: drizzle paths

* chore: fix linting issues

* fix: form reset issue

app/utils/utils.ts

@@ -0,0 +1,31 @@
+import { intervalToDuration } from "date-fns";
+
+export const getCronExpression = (frequency: string, dailyTime?: string, weeklyDay?: string): string => {
+	if (frequency === "hourly") {
+		return "0 * * * *";
+	}
+
+	if (!dailyTime) {
+		dailyTime = "02:00";
+	}
+
+	const [hours, minutes] = dailyTime.split(":");
+
+	if (frequency === "daily") {
+		return `${minutes} ${hours} * * *`;
+	}
+
+	return `${minutes} ${hours} * * ${weeklyDay ?? "0"}`;
+};
+
+export const formatDuration = (seconds: number) => {
+	const duration = intervalToDuration({ start: 0, end: seconds * 1000 });
+	const parts: string[] = [];
+
+	if (duration.days) parts.push(`${duration.days}d`);
+	if (duration.hours) parts.push(`${duration.hours}h`);
+	if (duration.minutes) parts.push(`${duration.minutes}m`);
+	if (duration.seconds || parts.length === 0) parts.push(`${duration.seconds || 0}s`);
+
+	return parts.join(" ");
+};