Keep the clicked voice chip selected while its summarize job runs

Chips are disabled during a run, so selection followed the previous
summary's voice while the new job churned — Neutral grayed out next to
a highlighted sarcastic even though sarcastic was what was running.
Selection now prefers the running job's tone, then the live draft, then
the saved summary.

app/src/main/kotlin/com/shonar/desktop/Screens.kt

@@ -596,6 +596,20 @@ fun DetailScreen(state: DesktopState) {
         ?: emptyList()
     val recHits = searchTranscriptLines(transcriptLines, recQuery)
 
+    // Voice shown as SELECTED on the chips: the running job's tone first
+    // (chips are disabled mid-run — the selection must say which voice is
+    // cooking), then the current summary's tone (reopening a file shows
+    // the voice it was actually summarized in — sumTone resets to null on
+    // every navigation and used to leave Neutral falsely selected), and
+    // only then a fresh click with no summary yet.
+    val sJobNow = detail.jobs.firstOrNull { it.jobType == "summarize" }
+    val sSummary = detail.summary
+    val chipTone: String? = when {
+        sJobNow != null && sJobNow.status in setOf("queued", "running") -> sJobNow.tone
+        sSummary != null -> sSummary.tone
+        else -> sumTone
+    }
+
     // Header stays pinned (outside the scroller): deep in a long
     // transcript, scrolling all the way up just to leave the page was
     // the complaint. Everything below scrolls as one flow.
@@ -909,7 +923,7 @@ fun DetailScreen(state: DesktopState) {
                         Row(horizontalArrangement = Arrangement.spacedBy(8.dp)) {
                             SUMMARIZE_PERSONAS.forEach { (label, tone) ->
                                 FilterChip(
-                                    selected = sumTone == tone,
+                                    selected = chipTone == tone,
                                     enabled = voicesEnabled,
                                     onClick = {
                                         sumTone = tone
@@ -975,7 +989,7 @@ fun DetailScreen(state: DesktopState) {
                     Row(horizontalArrangement = Arrangement.spacedBy(8.dp)) {
                         SUMMARIZE_PERSONAS.forEach { (label, tone) ->
                             FilterChip(
-                                selected = sumTone == tone,
+                                selected = chipTone == tone,
                                 enabled = voicesEnabled,
                                 onClick = {
                                     sumTone = tone