android: remove legacy single-message action bar

android/CHANGELOG.md

@@ -1009,3 +1009,9 @@
 - Fixed chat bug after closing message context menu by tapping outside:
   - selection state now clears on `ModalBottomSheet` dismiss,
   - prevents stale single-selection action bar from appearing after menu close.
+
+### Step 137 - Telegram-like message actions cleanup
+- Removed legacy single-selection bottom action bar (`Close/Delete/Del for all/Edit`) in chat.
+- Message actions are now driven by Telegram-like context UI:
+  - tap -> context sheet actions,
+  - long-press -> selection mode flow.

android/app/src/main/java/ru/daemonlord/messenger/ui/chat/ChatScreen.kt

@@ -890,56 +890,6 @@ fun ChatScreen(
             }
         }
 
-        if (state.actionState.hasSelection &&
-            state.actionState.mode == MessageSelectionMode.SINGLE &&
-            actionMenuMessage == null
-        ) {
-            Row(
-                modifier = Modifier
-                    .fillMaxWidth()
-                    .background(MaterialTheme.colorScheme.secondaryContainer.copy(alpha = 0.92f))
-                    .padding(horizontal = 12.dp, vertical = 6.dp),
-                horizontalArrangement = Arrangement.spacedBy(8.dp),
-                verticalAlignment = Alignment.CenterVertically,
-            ) {
-                Button(onClick = onClearSelection) { Text("Close") }
-                Text(
-                    text = "${state.actionState.selectedCount} selected",
-                    style = MaterialTheme.typography.labelLarge,
-                    modifier = Modifier.weight(1f),
-                )
-                if (state.actionState.mode == MessageSelectionMode.MULTI) {
-                    Button(onClick = onForwardSelected) { Text("Forward") }
-                    Button(
-                        onClick = {
-                            pendingDeleteForAll = false
-                            showDeleteDialog = true
-                        },
-                    ) { Text("Delete") }
-                } else {
-                    Button(
-                        onClick = {
-                            pendingDeleteForAll = false
-                            showDeleteDialog = true
-                        },
-                    ) { Text("Delete") }
-                    Button(
-                        onClick = {
-                            pendingDeleteForAll = true
-                            showDeleteDialog = true
-                        },
-                        enabled = state.selectedCanDeleteForAll,
-                    ) { Text("Del for all") }
-                    Button(
-                        onClick = { state.selectedMessage?.let(onEditSelected) },
-                        enabled = state.selectedCanEdit,
-                    ) { Text("Edit") }
-                    Button(onClick = { onToggleReaction("\uD83D\uDC4D") }) { Text("\uD83D\uDC4D") }
-                    Button(onClick = { onToggleReaction("\uD83D\uDE02") }) { Text("\uD83D\uDE02") }
-                }
-            }
-        }
-
         if (state.forwardingMessageIds.isNotEmpty()) {
             ModalBottomSheet(
                 onDismissRequest = onForwardDismiss,