feat: Add profile photo menu and avatar menu functionality in ProfileScreen

app/src/main/java/com/rosetta/messenger/ui/chats/components/ChatDetailComponents.kt

@@ -741,3 +741,69 @@ private fun KebabMenuItem(
         contentPadding = PaddingValues(horizontal = 12.dp, vertical = 12.dp)
     )
 }
+
+/** Profile photo menu for avatar */
+@Composable
+fun ProfilePhotoMenu(
+    expanded: Boolean,
+    onDismiss: () -> Unit,
+    isDarkTheme: Boolean,
+    onSetPhotoClick: () -> Unit
+) {
+    DropdownMenu(
+        expanded = expanded,
+        onDismissRequest = onDismiss,
+        modifier = Modifier.width(220.dp),
+        properties = PopupProperties(
+            focusable = true,
+            dismissOnBackPress = true,
+            dismissOnClickOutside = true
+        )
+    ) {
+        ProfilePhotoMenuItem(
+            icon = Icons.Default.AddAPhoto,
+            text = "Set Profile Photo",
+            onClick = onSetPhotoClick,
+            tintColor = PrimaryBlue,
+            textColor = if (isDarkTheme) Color.White else Color.Black
+        )
+    }
+}
+
+@Composable
+private fun ProfilePhotoMenuItem(
+    icon: ImageVector,
+    text: String,
+    onClick: () -> Unit,
+    tintColor: Color,
+    textColor: Color
+) {
+    val interactionSource = remember { MutableInteractionSource() }
+
+    DropdownMenuItem(
+        text = {
+            Row(
+                verticalAlignment = Alignment.CenterVertically,
+                modifier = Modifier.fillMaxWidth()
+            ) {
+                Icon(
+                    imageVector = icon,
+                    contentDescription = null,
+                    tint = tintColor,
+                    modifier = Modifier.size(24.dp)
+                )
+                Spacer(modifier = Modifier.width(14.dp))
+                Text(
+                    text = text,
+                    color = textColor,
+                    fontSize = 16.sp,
+                    fontWeight = FontWeight.Medium
+                )
+            }
+        },
+        onClick = onClick,
+        modifier = Modifier.fillMaxWidth().padding(horizontal = 4.dp),
+        interactionSource = interactionSource,
+        contentPadding = PaddingValues(horizontal = 12.dp, vertical = 12.dp)
+    )
+}

app/src/main/java/com/rosetta/messenger/ui/settings/ProfileScreen.kt

@@ -152,6 +152,10 @@ fun ProfileScreen(
         biometricAvailable = biometricManager.isBiometricAvailable()
         isBiometricEnabled = biometricPrefs.isBiometricEnabled.first()
     }
+    
+    // Состояние меню аватара для установки фото профиля
+    var showAvatarMenu by remember { mutableStateOf(false) }
+    
     // Цвета в зависимости от темы
     val backgroundColor = if (isDarkTheme) Color(0xFF1A1A1A) else Color(0xFFFFFFFF)
     val surfaceColor = if (isDarkTheme) Color(0xFF2C2C2E) else Color(0xFFF2F2F7)
@@ -396,7 +400,9 @@ fun ProfileScreen(
                 )
                 // Note: Local update happens in LaunchedEffect when saveSuccess is true
             },
-            isDarkTheme = isDarkTheme
+            isDarkTheme = isDarkTheme,
+            showAvatarMenu = showAvatarMenu,
+            onAvatarMenuChange = { showAvatarMenu = it }
         )
     }
 }
@@ -414,7 +420,9 @@ private fun CollapsingProfileHeader(
     onBack: () -> Unit,
     hasChanges: Boolean,
     onSave: () -> Unit,
-    isDarkTheme: Boolean
+    isDarkTheme: Boolean,
+    showAvatarMenu: Boolean,
+    onAvatarMenuChange: (Boolean) -> Unit
 ) {
     val density = LocalDensity.current
     val configuration = LocalConfiguration.current
@@ -489,6 +497,41 @@ private fun CollapsingProfileHeader(
             }
         }
         
+        // ═══════════════════════════════════════════════════════════
+        // ⋮ MENU BUTTON (top right corner)
+        // ═══════════════════════════════════════════════════════════
+        Box(
+            modifier = Modifier
+                .align(Alignment.TopEnd)
+                .padding(top = statusBarHeight)
+                .padding(end = 4.dp, top = 4.dp)
+                .size(48.dp),
+            contentAlignment = Alignment.Center
+        ) {
+            IconButton(
+                onClick = { onAvatarMenuChange(true) },
+                modifier = Modifier.size(48.dp)
+            ) {
+                Icon(
+                    imageVector = Icons.Default.MoreVert,
+                    contentDescription = "Profile menu",
+                    tint = Color.White,
+                    modifier = Modifier.size(24.dp)
+                )
+            }
+            
+            // Меню для установки фото профиля
+            com.rosetta.messenger.ui.chats.components.ProfilePhotoMenu(
+                expanded = showAvatarMenu,
+                onDismiss = { onAvatarMenuChange(false) },
+                isDarkTheme = isDarkTheme,
+                onSetPhotoClick = {
+                    onAvatarMenuChange(false)
+                    // TODO: Реализовать выбор фото профиля
+                }
+            )
+        }
+        
         // ═══════════════════════════════════════════════════════════
         // 👤 AVATAR - shrinks and moves up
         // ═══════════════════════════════════════════════════════════