Add CBT-based guided reflection questions with clinical info sheet

Replace generic journaling prompts with evidence-based therapeutic
techniques: CBT thought record for negative moods, ACT cognitive
defusion for neutral, and behavioral activation for positive. Each
question now shows a clinical step label (e.g. SITUATION, REFRAME).
Added info button linking to a new sheet explaining the techniques
with citations to Beck, Harris, and Martell/Dimidjian.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Shared/Views/GuidedReflectionView.swift

@@ -20,6 +20,7 @@ struct GuidedReflectionView: View {
     @State private var currentStep: Int = 0
     @State private var isSaving = false
     @State private var showDiscardAlert = false
+    @State private var showInfoSheet = false
     @FocusState private var isTextFieldFocused: Bool
 
     /// Snapshot of the initial state to detect unsaved changes
@@ -83,6 +84,15 @@ struct GuidedReflectionView: View {
                     .accessibilityIdentifier(AccessibilityID.GuidedReflection.cancelButton)
                 }
 
+                ToolbarItem(placement: .primaryAction) {
+                    Button {
+                        showInfoSheet = true
+                    } label: {
+                        Image(systemName: "info.circle")
+                    }
+                    .accessibilityLabel(String(localized: "guided_reflection_about_title"))
+                }
+
                 ToolbarItemGroup(placement: .keyboard) {
                     Spacer()
                     Button("Done") {
@@ -102,6 +112,9 @@ struct GuidedReflectionView: View {
                 Text(String(localized: "guided_reflection_unsaved_message"))
             }
             .trackScreen(.guidedReflection)
+            .sheet(isPresented: $showInfoSheet) {
+                GuidedReflectionInfoView()
+            }
         }
     }
 
@@ -153,6 +166,16 @@ struct GuidedReflectionView: View {
         VStack(alignment: .leading, spacing: 16) {
             if currentStep < reflection.responses.count {
                 let response = reflection.responses[currentStep]
+                let stepLabels = reflection.moodCategory.stepLabels
+
+                // CBT step label
+                if currentStep < stepLabels.count {
+                    Text(stepLabels[currentStep].uppercased())
+                        .font(.caption)
+                        .fontWeight(.semibold)
+                        .foregroundStyle(.secondary)
+                        .tracking(1.5)
+                }
 
                 Text(response.question)
                     .font(.title3)