fix(cron): add repeat dropdown and safe touch time selection

app/src/test/java/com/m57/hermescontrol/ui/cron/ScheduleSelectionTest.kt

@@ -0,0 +1,43 @@
+package com.m57.hermescontrol.ui.cron
+
+import org.junit.Assert.assertEquals
+import org.junit.Test
+
+class ScheduleSelectionTest {
+    @Test
+    fun `calendar selections preserve exact time when reopened`() {
+        val cases = mapOf(
+            "59 23 * * *" to ScheduleMode.DAILY,
+            "59 * * * *" to ScheduleMode.HOURLY,
+            "* * * * *" to ScheduleMode.MINUTELY,
+            "59 23 * * 1,3,5" to ScheduleMode.WEEKLY,
+            "59 23 31 * *" to ScheduleMode.MONTHLY,
+            "59 23 29 2 *" to ScheduleMode.YEARLY,
+            "0 0 1 1 *" to ScheduleMode.YEARLY,
+            "every 120m" to ScheduleMode.INTERVAL,
+        )
+        cases.forEach { (expression, mode) ->
+            val parsed = parseSchedule(expression)
+            assertEquals(expression, mode, parsed.mode)
+            assertEquals(expression, expression, parsed.toSchedule())
+        }
+    }
+
+    @Test
+    fun `unknown and malformed schedules remain untouched`() {
+        listOf("every 1s", "every 0m", "every 999999999999999h", "0 9 * * 1,garbage",
+            "0 9 * * 1,8", "0 9 31 2 *", "99 99 * * *", "2030-01-01T12:00:00",
+            "*/45 * * * *", "0 */5 * * *", "0 9 * * MON-FRI").forEach { expression ->
+            val parsed = parseSchedule(expression)
+            assertEquals(expression, ScheduleMode.ADVANCED, parsed.mode)
+            assertEquals(expression, expression, parsed.toSchedule())
+        }
+    }
+
+    @Test
+    fun `daily time selection builds actual backend expression`() {
+        assertEquals("59 23 * * *", ParsedSchedule(ScheduleMode.DAILY, hour = 23, minute = 59).toSchedule())
+        assertEquals("every 90m", ParsedSchedule(ScheduleMode.INTERVAL, intervalCount = 90, intervalUnit = "m").toSchedule())
+        assertEquals(setOf(0, 6), parseSchedule("0 9 * * 6-7").selectedDays)
+    }
+}