Revert "Add Apple Intelligence provider (Phase 1 — on-device)"

This reverts commit f3a0c45331.

oAI/Views/Screens/CreditsView.swift

@@ -80,17 +80,6 @@ struct CreditsView: View {
                             .font(.system(size: 40))
                             .foregroundColor(.green)
                             .padding(.top)
-
-                    case .appleOnDevice:
-                        Text("Apple Intelligence")
-                            .font(.headline)
-                        Text("On-device and free — no credits or API key needed.")
-                            .font(.body)
-                            .foregroundColor(.secondary)
-                        Image(systemName: "apple.logo")
-                            .font(.system(size: 40))
-                            .foregroundColor(.secondary)
-                            .padding(.top)
                     }
                 }
 

oAI/Views/Screens/SettingsView.swift

@@ -25,7 +25,6 @@
 
 import SwiftUI
 import UniformTypeIdentifiers
-import FoundationModels
 
 struct SettingsView: View {
     @Environment(\.dismiss) var dismiss
@@ -307,29 +306,6 @@ It's better to admit "I need more information" or "I cannot do that" than to fak
             }
         }
 
-        // Apple Intelligence
-        VStack(alignment: .leading, spacing: 6) {
-            sectionHeader("Apple Intelligence")
-            formSection {
-                row("Status") {
-                    appleIntelligenceStatusBadge
-                }
-                rowDivider()
-                row("Model") {
-                    Text("On-Device (4K context)")
-                        .foregroundStyle(.secondary)
-                }
-                rowDivider()
-                row("") {
-                    Button("Open Apple Intelligence Settings") {
-                        if let url = URL(string: "x-apple.systempreferences:com.apple.preference.aisettings") {
-                            NSWorkspace.shared.open(url)
-                        }
-                    }
-                }
-            }
-        }
-
         // Features
         VStack(alignment: .leading, spacing: 6) {
             sectionHeader("Features")
@@ -2673,28 +2649,6 @@ It's better to admit "I need more information" or "I cannot do that" than to fak
         formatter.unitsStyle = .full
         return formatter.localizedString(for: date, relativeTo: .now)
     }
-
-    @ViewBuilder
-    private var appleIntelligenceStatusBadge: some View {
-        let availability = SystemLanguageModel.default.availability
-        switch availability {
-        case .available:
-            Label("Available", systemImage: "checkmark.circle.fill")
-                .foregroundStyle(.green)
-        case .unavailable(.deviceNotEligible):
-            Label("Not supported on this Mac", systemImage: "xmark.circle.fill")
-                .foregroundStyle(.red)
-        case .unavailable(.appleIntelligenceNotEnabled):
-            Label("Not enabled — open Apple Intelligence Settings", systemImage: "exclamationmark.circle.fill")
-                .foregroundStyle(.orange)
-        case .unavailable(.modelNotReady):
-            Label("Model downloading…", systemImage: "arrow.down.circle.fill")
-                .foregroundStyle(.orange)
-        default:
-            Label("Unavailable", systemImage: "questionmark.circle.fill")
-                .foregroundStyle(.secondary)
-        }
-    }
 }
 
 #Preview {