refactor(sessions): show job name in automation groups and preserve action labels

app/src/main/java/com/m57/hermescontrol/ui/sessions/AutomationSessionGroup.kt

@@ -6,6 +6,7 @@ internal data class AutomationSessionGroup(
     val key: String,
     val jobId: String?,
     val sessions: List<SessionInfo>,
+    val title: String? = null,
 )
 
 // cron.scheduler mints durable run IDs as cron_{job_id}_{YYYYMMDD_HHMMSS}.
@@ -20,9 +21,18 @@ internal fun automationGroups(sessions: List<SessionInfo>): List<AutomationSessi
                 if (session.source == "cron") CRON_RUN_ID.matchEntire(session.id)?.groupValues?.get(1) else null
             jobId?.let { "job:$it" } ?: "session:${session.id}"
         }.map { (key, runs) ->
+            val jobId = key.takeIf { it.startsWith("job:") }?.removePrefix("job:")
+            val title =
+                runs
+                    .mapNotNull { it.title?.takeIf(String::isNotBlank) }
+                    .firstOrNull()
+                    ?.substringBeforeLast(" · ")
+                    ?.trim()
+                    ?.takeIf(String::isNotBlank)
             AutomationSessionGroup(
                 key = key,
-                jobId = key.takeIf { it.startsWith("job:") }?.removePrefix("job:"),
+                jobId = jobId,
+                title = title,
                 sessions = runs,
             )
         }

app/src/main/java/com/m57/hermescontrol/ui/sessions/SessionsScreen.kt

@@ -617,7 +617,7 @@ fun SessionsScreen(
                                 modifier = Modifier.size(18.dp),
                             )
                             Spacer(modifier = Modifier.width(spacing.xs))
-                            Text(stringResource(R.string.sessions_empty_cleanup_all_history))
+                            Text(stringResource(R.string.sessions_empty_cleanup_desc))
                         }
                     }
                 }
@@ -823,7 +823,7 @@ fun SessionsScreen(
                                                     modifier = Modifier.size(20.dp),
                                                 )
                                                 Text(
-                                                    text = stringResource(R.string.sessions_action_prune_all_history),
+                                                    text = stringResource(R.string.sessions_action_prune),
                                                     style = MaterialTheme.typography.labelMedium,
                                                     color = statusColors.warning,
                                                     fontWeight = FontWeight.SemiBold,
@@ -946,12 +946,13 @@ fun SessionsScreen(
                                                 Column {
                                                     Text(
                                                         text =
-                                                            group.jobId?.let {
+                                                            group.title
-                                                                stringResource(
+                                                                ?: group.jobId?.let {
-                                                                    R.string.sessions_section_automation_job,
+                                                                    stringResource(
-                                                                    it,
+                                                                        R.string.sessions_section_automation_job,
-                                                                )
+                                                                        it,
-                                                            } ?: stringResource(
+                                                                    )
+                                                                } ?: stringResource(
                                                                 R.string.sessions_section_automation_unknown,
                                                             ),
                                                         style = MaterialTheme.typography.titleSmall,

app/src/main/res/values/strings.xml

@@ -590,13 +590,11 @@
     <string name="sessions_section_automation_unknown">Automation run</string>
     <string name="sessions_section_automation_runs">%1$d loaded run(s)</string>
     <string name="sessions_action_prune">Prune</string>
-    <string name="sessions_action_prune_all_history">Prune all history</string>
     <string name="sessions_prune_title">Prune Old Sessions</string>
     <string name="sessions_prune_desc">Delete sessions older than the specified number of days.</string>
     <string name="sessions_prune_days_label">Days threshold</string>
     <string name="sessions_prune_confirm">Prune</string>
     <string name="sessions_empty_cleanup_desc">Empty</string>
-    <string name="sessions_empty_cleanup_all_history">Empty in all history</string>
     <string name="sessions_empty_cleanup_title">Delete empty sessions?</string>
     <string name="sessions_empty_cleanup_message">Delete %1$d empty session(s). Active and archived sessions are kept.</string>
     <string name="sessions_empty_cleanup_confirm">Delete</string>

app/src/test/java/com/m57/hermescontrol/ui/sessions/HistorySessionGroupsTest.kt

@@ -53,4 +53,26 @@ class HistorySessionGroupsTest {
         val groups = automationGroups(listOf(SessionInfo("cron_job_20260905_100000", source = "cli")))
         assertNull(groups.single().jobId)
     }
+
+    @Test
+    fun derivesJobTitleFromLatestSessionWhileGroupingByJobId() {
+        val groups =
+            automationGroups(
+                listOf(
+                    SessionInfo(
+                        "cron_nightly_20260905_100000",
+                        title = "Nightly Backup · Sep 05 10:00",
+                        source = "cron",
+                    ),
+                    SessionInfo(
+                        "cron_nightly_20260905_090000",
+                        title = "Nightly Backup · Sep 05 09:00",
+                        source = "cron",
+                    ),
+                ),
+            )
+        assertEquals(1, groups.size)
+        assertEquals("nightly", groups.single().jobId)
+        assertEquals("Nightly Backup", groups.single().title)
+    }
 }