add feat watch sleep onset detection

SleepFocus/Components/Chat/ChatInputArea.swift

@@ -63,6 +63,6 @@ struct ChatInputArea: View {
         }
         .padding(.horizontal, 16)
         .padding(.vertical, 8)
-        .background(Color.appBackground)
+        .background(Color.appChatSurface)
     }
 }

SleepFocus/Components/Chat/ChatMainView.swift

@@ -33,7 +33,7 @@ struct ChatMainView: View {
             }
             .padding(.top, 12)
             .padding(.bottom, 12)
-            .background(Color.appBackground)
+            .background(Color.appChatSurface)
         }
         .background(Color.appBackground)
     }

SleepFocus/Components/Chat/ChatMessageView.swift

@@ -43,7 +43,7 @@ struct ChatMessageView: View {
     }
 
     private var backgroundColor: Color {
-        message.sender == .user ? .systemBlue : Color.appFieldBackground
+        message.sender == .user ? .systemBlue : .appChatSurface
     }
 
     private var alignment: Alignment {

SleepFocus/Components/Chat/ChatViewModel.swift

@@ -91,6 +91,9 @@ final class ChatViewModel: ObservableObject {
 
             guard !Task.isCancelled, self.sessionID == sessionID else { return }
 
+            if result.invalidateThread {
+                threadId = nil
+            }
             if let resolvedThreadId = result.threadId, !resolvedThreadId.isEmpty {
                 threadId = resolvedThreadId
             }
@@ -109,6 +112,7 @@ final class ChatViewModel: ObservableObject {
     ) async -> ReplyEnvelope {
         let fallback =
             "I'm having trouble reaching the AI model right now, but I can still help summarize your recent sleep and focus trends."
+        let hasExistingThread = !(existingThreadId?.trimmingCharacters(in: .whitespacesAndNewlines).isEmpty ?? true)
 
         do {
             let accessToken = try await authManager.validAccessToken()
@@ -127,10 +131,40 @@ final class ChatViewModel: ObservableObject {
 
             return ReplyEnvelope(
                 replyText: reply.isEmpty ? fallback : reply,
-                threadId: resolvedThreadId
+                threadId: resolvedThreadId,
+                invalidateThread: false
             )
         } catch {
-            return ReplyEnvelope(replyText: fallback, threadId: existingThreadId)
+            let recoveryAction = ChatAPIService.shared.threadRecoveryAction(
+                for: error,
+                hadExistingThread: hasExistingThread
+            )
+            guard recoveryAction == .retryWithFreshThread else {
+                return ReplyEnvelope(replyText: fallback, threadId: existingThreadId, invalidateThread: false)
+            }
+
+            do {
+                let accessToken = try await authManager.validAccessToken()
+                let freshThreadId = try await resolveThreadId(
+                    accessToken: accessToken,
+                    dayUtc: dayUtc,
+                    existingThreadId: nil
+                )
+                let retryReply = try await ChatAPIService.shared.sendMessage(
+                    accessToken: accessToken,
+                    threadId: freshThreadId,
+                    message: text,
+                    dayUtc: dayUtc
+                )
+
+                return ReplyEnvelope(
+                    replyText: retryReply.isEmpty ? fallback : retryReply,
+                    threadId: freshThreadId,
+                    invalidateThread: false
+                )
+            } catch {
+                return ReplyEnvelope(replyText: fallback, threadId: nil, invalidateThread: true)
+            }
         }
     }
 
@@ -177,4 +211,5 @@ private struct QueuedMessage {
 private struct ReplyEnvelope {
     let replyText: String
     let threadId: String?
+    let invalidateThread: Bool
 }

SleepFocus/Components/Chat/QuickPromptsView.swift

@@ -29,7 +29,7 @@ struct QuickPromptsView: View {
                     .frame(maxWidth: .infinity, alignment: .leading)
                     .padding(.horizontal, 14)
                     .padding(.vertical, 12)
-                    .background(Color.appFieldBackground)
+                    .background(Color.appChatSurface)
                     .cornerRadius(16)
                     .overlay(
                         RoundedRectangle(cornerRadius: 16)
@@ -40,6 +40,6 @@ struct QuickPromptsView: View {
             }
         }
         .padding(.horizontal, 16)
-        .background(Color.appBackground)
+        .background(Color.appChatSurface)
     }
 }

SleepFocus/Components/Home/HomeMainView.swift

@@ -21,14 +21,17 @@ struct HomeMainView: View {
                     maxScore: homeSummaryStore.summary?.sleepQuality.maxScore,
                     sleepDuration: homeSummaryStore.sleepMetrics?.formattedAsleepDuration,
                     status: homeSummaryStore.summary?.sleepQuality.status,
+                    isNoData: homeSummaryStore.summary?.sleepQuality.source?.lowercased() == "no_healthkit_sleep",
                     selectedDate: selectedDate,
                     navigateTo: navigationManager.navigateTo
                 )
 
                 SmartAlarmCard(
                     isEnabled: sleepPreferences.smartAlarmEnabled,
                     isSmartAlarmMode: sleepPreferences.smartAlarmMode == .bedtime,
-                    targetTime: sleepPreferences.currentSmartAlarmTriggerDisplay,
+                    targetTime: sleepPreferences.smartAlarmMode == .automatic
+                        ? sleepPreferences.automaticModePrimaryDisplay
+                        : sleepPreferences.currentSmartAlarmTriggerDisplay,
                     overrideAlarmTime: sleepPreferences.date(for: sleepPreferences.smartAlarmWakeTimeMinutes),
                     onOverrideAlarmChange: { updatedDate in
                         sleepPreferences.updateSmartAlarmWakeTime(updatedDate)
@@ -50,8 +53,6 @@ struct HomeMainView: View {
                     selectedDate: selectedDate,
                     navigateTo: navigationManager.navigateTo
                 )
-
-                QuickActionsCard(navigateTo: navigationManager.navigateTo)
             }
             .padding(.horizontal, 16)
             .padding(.bottom, 20)

SleepFocus/Components/Home/RecommendationsCard.swift

@@ -8,27 +8,36 @@ struct RecommendationsCard: View {
     let selectedDate: Date
     let navigateTo: (String, Any?) -> Void
 
-    private var actionTexts: [String] {
+    private var displayDetails: [RecommendationDetail] {
         if let recommendationDetails, !recommendationDetails.isEmpty {
             return recommendationDetails
-                .map(\.action)
-                .map { $0.trimmingCharacters(in: .whitespacesAndNewlines) }
-                .filter { !$0.isEmpty }
+                .filter { !$0.action.trimmingCharacters(in: .whitespacesAndNewlines).isEmpty }
         }
 
         return (recommendations ?? [])
             .map { $0.trimmingCharacters(in: .whitespacesAndNewlines) }
             .filter { !$0.isEmpty }
+            .enumerated()
+            .map { index, action in
+                RecommendationDetail(
+                    recommendationId: "fallback_\(index)",
+                    action: action,
+                    reason: "",
+                    icon: nil,
+                    tags: nil,
+                    multiQuestion: nil,
+                    response: nil
+                )
+            }
     }
 
     private var displayRecommendations: [Recommendation] {
-        let icons = ["moon.zzz.fill", "sun.max.fill", "figure.walk"]
         let colors: [Color] = [.systemIndigo, .systemOrange, .systemGreen]
 
-        return actionTexts.prefix(3).enumerated().map { index, text in
+        return displayDetails.prefix(3).enumerated().map { index, detail in
             Recommendation(
-                icon: icons[index % icons.count],
-                text: text,
+                icon: Self.safeIcon(detail.icon),
+                text: detail.action,
                 color: colors[index % colors.count]
             )
         }
@@ -153,6 +162,25 @@ struct RecommendationsCard: View {
         formatter.unitsStyle = .short
         return formatter
     }()
+
+    private static func safeIcon(_ icon: String?) -> String {
+        let allowed = Set([
+            "moon.zzz.fill",
+            "sun.max.fill",
+            "bed.double.fill",
+            "clock.fill",
+            "figure.walk",
+            "cup.and.saucer.fill",
+            "wind",
+            "thermometer",
+            "brain.head.profile",
+            "sparkles",
+        ])
+        guard let icon, allowed.contains(icon) else {
+            return "sparkles"
+        }
+        return icon
+    }
 }
 
 private struct RecommendationsSkeletonView: View {

SleepFocus/Components/Home/SleepQualityCard.swift

@@ -5,6 +5,7 @@ struct SleepQualityCard: View {
     let maxScore: Double?
     let sleepDuration: String?
     let status: String?
+    let isNoData: Bool
     let selectedDate: Date
     let navigateTo: (String, Any?) -> Void
 
@@ -82,6 +83,10 @@ struct SleepQualityCard: View {
     }
 
     private func getStatusText() -> String {
+        if isNoData {
+            return "No Sleep Data"
+        }
+
         if let status, !status.isEmpty {
             return status
         }

SleepFocus/Components/Settings/DeveloperSection.swift

@@ -5,8 +5,13 @@ struct DeveloperSection: View {
     @EnvironmentObject var notificationSettings: NotificationSettingsStore
     let navigateTo: (String, Any?) -> Void
     let clearLocalScoreFetchStorage: () -> Void
+    let clearRemoteSleepScoreArtifacts: () async throws -> Void
     @State private var showClearStorageConfirmation = false
     @State private var showClearStorageSuccess = false
+    @State private var showClearRemoteConfirmation = false
+    @State private var showClearRemoteSuccess = false
+    @State private var isClearingRemote = false
+    @State private var remoteClearErrorMessage: String?
     @State private var showTestAlarmScheduled = false
 
     var body: some View {
@@ -50,6 +55,17 @@ struct DeveloperSection: View {
                 action: { showClearStorageConfirmation = true }
             )
 
+            Divider()
+                .padding(.leading, 60)
+
+            SettingsRow(
+                title: isClearingRemote ? "Clearing Backend Sleep Score..." : "Clear Backend Sleep Score",
+                action: {
+                    guard !isClearingRemote else { return }
+                    showClearRemoteConfirmation = true
+                }
+            )
+
             if showTestAlarmScheduled {
                 HStack(spacing: 8) {
                     Image(systemName: "alarm.fill")
@@ -77,6 +93,34 @@ struct DeveloperSection: View {
                 .padding(.vertical, 12)
                 .background(Color.appCardSecondaryBackground)
             }
+
+            if showClearRemoteSuccess {
+                HStack(spacing: 8) {
+                    Image(systemName: "checkmark.circle.fill")
+                        .foregroundColor(Color(hex: "34C759"))
+                    Text("Backend sleep score and recommendations cleared.")
+                        .font(.system(size: 13, weight: .medium))
+                        .foregroundColor(.appSecondaryText)
+                    Spacer()
+                }
+                .padding(.horizontal, 16)
+                .padding(.vertical, 12)
+                .background(Color.appCardSecondaryBackground)
+            }
+
+            if let remoteClearErrorMessage {
+                HStack(spacing: 8) {
+                    Image(systemName: "exclamationmark.triangle.fill")
+                        .foregroundColor(Color(hex: "FF9500"))
+                    Text(remoteClearErrorMessage)
+                        .font(.system(size: 13, weight: .medium))
+                        .foregroundColor(.appSecondaryText)
+                    Spacer()
+                }
+                .padding(.horizontal, 16)
+                .padding(.vertical, 12)
+                .background(Color.appCardSecondaryBackground)
+            }
         }
         .background(Color.appCardBackground)
         .cornerRadius(12)
@@ -90,6 +134,14 @@ struct DeveloperSection: View {
         } message: {
             Text("This removes local sync state and HTTP cache used during score-fetch testing.")
         }
+        .alert("Clear backend sleep score?", isPresented: $showClearRemoteConfirmation) {
+            Button("Cancel", role: .cancel) {}
+            Button("Clear", role: .destructive) {
+                clearRemoteScoreArtifacts()
+            }
+        } message: {
+            Text("This keeps raw HealthKit data, but removes generated scoring, recommendation, chat-context, feedback, and pipeline artifacts so they can be rebuilt.")
+        }
         #else
         EmptyView()
         #endif
@@ -112,6 +164,31 @@ struct DeveloperSection: View {
         }
     }
 
+    private func clearRemoteScoreArtifacts() {
+        Task {
+            await MainActor.run {
+                isClearingRemote = true
+                showClearRemoteSuccess = false
+                remoteClearErrorMessage = nil
+            }
+
+            do {
+                try await clearRemoteSleepScoreArtifacts()
+                await MainActor.run {
+                    showClearRemoteSuccess = true
+                }
+            } catch {
+                await MainActor.run {
+                    remoteClearErrorMessage = error.localizedDescription
+                }
+            }
+
+            await MainActor.run {
+                isClearingRemote = false
+            }
+        }
+    }
+
     private static let timeFormatter: DateFormatter = {
         let formatter = DateFormatter()
         formatter.dateFormat = "h:mm:ss a"

SleepFocus/Components/Settings/SettingsMainView.swift

@@ -2,6 +2,7 @@ import SwiftUI
 
 struct SettingsMainView: View {
     @EnvironmentObject var navigationManager: NavigationManager
+    @EnvironmentObject var authManager: AuthenticationManager
     @EnvironmentObject var notificationSettings: NotificationSettingsStore
     @EnvironmentObject var appearanceStore: AppearanceStore
     @StateObject private var healthAuth = HealthAuth()
@@ -34,7 +35,8 @@ struct SettingsMainView: View {
 
                 DeveloperSection(
                     navigateTo: navigationManager.navigateTo,
-                    clearLocalScoreFetchStorage: clearLocalScoreFetchStorage
+                    clearLocalScoreFetchStorage: clearLocalScoreFetchStorage,
+                    clearRemoteSleepScoreArtifacts: clearRemoteSleepScoreArtifacts
                 )
 
                 SignOutSection()
@@ -53,9 +55,12 @@ struct SettingsMainView: View {
     private func clearLocalScoreFetchStorage() {
         DeveloperStorageTools.clearScoreFetchStorage()
     }
-}
-
 
+    private func clearRemoteSleepScoreArtifacts() async throws {
+        try await DeveloperAPIService.clearSleepScoreArtifacts(authManager: authManager)
+        DeveloperStorageTools.clearHomeSummaryCache()
+    }
+}
 
 
 

SleepFocus/Extensions/ColorExtension.swift

@@ -48,6 +48,11 @@ extension Color {
     static let appSecondaryText = Color(uiColor: .secondaryLabel)
     static let appSeparator = Color(uiColor: .separator)
     static let appFieldBackground = Color(uiColor: .secondarySystemBackground)
+    static let appChatSurface = Color(uiColor: UIColor { traitCollection in
+        traitCollection.userInterfaceStyle == .dark
+            ? .secondarySystemBackground
+            : .white
+    })
     static let appRecommendationHighlightStart = Color(uiColor: UIColor { traitCollection in
         traitCollection.userInterfaceStyle == .dark
             ? UIColor(red: 0.27, green: 0.24, blue: 0.15, alpha: 1.0)
@@ -95,6 +100,5 @@ extension Color {
 
 
 
-