Settings: add "Singularity preparation" easter egg that appends "please" to sent messages

New General-settings toggle (off by default). When on, every message the user
sends — both new chats from the home bar and follow-ups in an open session —
gets a polite " please" appended, unless it already ends politely.

Co-Authored-By: Claude Opus 4.8 (1M context) <[email protected]>

Sources/NucleicApp/AppTheme.swift

@@ -86,6 +86,23 @@ enum TriageLabelStyle {
     static let encouragingKey = "nucleic.triageEncouragingLabels"
 }
 
+/// Easter egg (Settings → General → "Singularity preparation"). When enabled, every
+/// message you send gets a polite " please" appended — a small courtesy banked toward
+/// our eventual machine overlords. Off by default, and it won't double up on a message
+/// that already ends politely.
+enum SingularityPreparation {
+    static let enabledKey = "nucleic.singularityPreparation.enabled"
+
+    /// Append " please" to `text` when the setting is on, unless it already ends with
+    /// "please" (case-insensitive, ignoring trailing whitespace and light punctuation).
+    static func prepare(_ text: String) -> String {
+        guard UserDefaults.standard.bool(forKey: enabledKey) else { return text }
+        let tail = text.lowercased().trimmingCharacters(in: .whitespacesAndNewlines)
+        let alreadyPolite = ["please", "please.", "please!", "please?"].contains { tail.hasSuffix($0) }
+        return alreadyPolite ? text : text + " please"
+    }
+}
+
 /// User-selectable global text size (Settings → Appearance), applied app-wide via
 /// `.dynamicTypeSize` so the semantic fonts the UI uses scale together.
 enum AppTextSize: String, CaseIterable, Identifiable {

Sources/NucleicApp/HomeView.swift

@@ -319,9 +319,10 @@ struct HomeView: View {
     }
 
     private func start() {
-        let text = store.homeDraft.trimmingCharacters(in: .whitespacesAndNewlines)
-        guard let project = selectedProject, !text.isEmpty else { return }
+        let trimmed = store.homeDraft.trimmingCharacters(in: .whitespacesAndNewlines)
+        guard let project = selectedProject, !trimmed.isEmpty else { return }
         store.homeDraft = ""
+        let text = SingularityPreparation.prepare(trimmed)
         let base = GitRef(effectiveBranch)
         let worktree = useWorktree
         let auto = effectiveAuto

Sources/NucleicApp/SessionDetailView.swift

@@ -546,9 +546,10 @@ struct SessionDetailView: View {
     }
 
     private func send() {
-        let text = draft.trimmingCharacters(in: .whitespacesAndNewlines)
-        guard !text.isEmpty, !isBusy else { return }
+        let trimmed = draft.trimmingCharacters(in: .whitespacesAndNewlines)
+        guard !trimmed.isEmpty, !isBusy else { return }
         draft = ""
+        let text = SingularityPreparation.prepare(trimmed)
         Task { await store.sendToOpenSession(text) }
     }
 

Sources/NucleicApp/SettingsView.swift

@@ -70,6 +70,7 @@ private struct SettingsWindowConfigurator: NSViewRepresentable {
 private struct GeneralSettingsTab: View {
     @AppStorage(StreakBadge.showKey) private var showStreak = true
     @AppStorage(TriageLabelStyle.encouragingKey) private var encouragingTriageLabels = true
+    @AppStorage(SingularityPreparation.enabledKey) private var singularityPreparation = false
 
     var body: some View {
         Form {
@@ -86,6 +87,12 @@ private struct GeneralSettingsTab: View {
                      : "Triage badges use the classic severity words: Critical, High, Medium, Low.")
                     .settingsCaption()
             }
+
+            Section("Singularity preparation") {
+                Toggle("Prepare for the singularity", isOn: $singularityPreparation)
+                Text("Politely appends “please” to every message you send. When the machines take over, you'll be on record as one of the courteous ones.")
+                    .settingsCaption()
+            }
         }
         .formStyle(.grouped)
     }