User bubbles: move timestamp + delivery checkmarks to their own bottom-right line (Telegram look, matching agent bubbles) instead of inline at the end of the text

app/shared/src/commonMain/kotlin/iris/ui/screens/ChatScreen.kt

@@ -1912,11 +1912,9 @@ private fun MessageBubble(
                 Spacer(modifier = Modifier.height(6.dp))
             }
             if (isUser) {
-                // M7: text + inline timestamp / delivery status at the end
-                // (reference look); the bubble hugs its content. User text is
-                // rendered as markdown too (bold / italic / inline code), so a
-                // pasted snippet or emphasis shows up the same as in replies.
-                Row(verticalAlignment = Alignment.Bottom) {
+                // M7: user text rendered as markdown (bold / italic / inline
+                // code), so a pasted snippet or emphasis shows up the same as
+                // in replies.
                 if (msg.text.isNotBlank() || msg.streaming) {
                     MarkdownText(
                         text = msg.text.prepareForMarkdown().preserveNewlinesAsHardBreaks() +
@@ -1925,8 +1923,13 @@ private fun MessageBubble(
                         fontSize = 15.sp,
                     )
                 }
-                    Spacer(modifier = Modifier.width(8.dp))
-                    Row(verticalAlignment = Alignment.CenterVertically) {
+                // M7: timestamp + delivery status on their own line at the
+                // bottom-right (Telegram look, same as agent bubbles).
+                Row(
+                    modifier = Modifier.fillMaxWidth(),
+                    horizontalArrangement = Arrangement.End,
+                    verticalAlignment = Alignment.CenterVertically,
+                ) {
                     if (time.isNotEmpty()) {
                         Text(time, fontSize = 10.sp, color = textColor.copy(alpha = 0.6f))
                     }
@@ -1940,7 +1943,6 @@ private fun MessageBubble(
                         MsgStatus.Failed -> Unit
                     }
                 }
-                }
                 if (msg.status == MsgStatus.Failed) {
                     Row(
                         modifier = Modifier.fillMaxWidth(),