Fix iOS chat background presentation

apps/ios/Sources/Design/ChatProTab.swift

@@ -42,7 +42,9 @@ struct ChatProTab: View {
                         Spacer()
                     }
                 }
+                .frame(maxWidth: .infinity, maxHeight: .infinity, alignment: .top)
             }
+            .frame(maxWidth: .infinity, maxHeight: .infinity, alignment: .top)
             .navigationBarHidden(true)
         }
         .task {

apps/ios/Sources/Design/OpenClawProComponents.swift

@@ -22,11 +22,12 @@ struct OpenClawProBackground: View {
                     LinearGradient(
                         colors: [
                             OpenClawBrand.accent.opacity(0.05),
+                            OpenClawBrand.accent.opacity(0.02),
                             .clear,
                         ],
                         startPoint: .topTrailing,
                         endPoint: .bottomLeading)
-                        .frame(height: 260)
+                        .frame(height: 620)
                         .ignoresSafeArea()
                 }
             }

apps/shared/OpenClawKit/Sources/OpenClawChatUI/ChatView.swift

@@ -269,7 +269,7 @@ public struct OpenClawChatView: View {
                 .frame(maxWidth: .infinity, alignment: .leading)
         }
 
-        if self.composerChrome == .clean, let error = self.activeErrorText, !self.hasVisibleMessageListContent {
+        if let error = self.inlineCleanErrorText {
             let presentation = self.errorPresentation(for: error)
             ChatNoticeCard(
                 systemImage: presentation.systemImage,
@@ -348,6 +348,8 @@ public struct OpenClawChatView: View {
             EmptyView()
         } else if self.showsCleanLoadingPlaceholder {
             EmptyView()
+        } else if self.inlineCleanErrorText != nil {
+            EmptyView()
         } else if let error = self.activeErrorText {
             if self.hasVisibleMessageListContent {
                 EmptyView()
@@ -386,6 +388,13 @@ public struct OpenClawChatView: View {
         return text
     }
 
+    private var inlineCleanErrorText: String? {
+        guard self.composerChrome == .clean, !self.hasVisibleMessageListContent else {
+            return nil
+        }
+        return self.activeErrorText
+    }
+
     private var hasVisibleMessageListContent: Bool {
         if !self.visibleMessages.isEmpty {
             return true