feat(v3.0.0): unify platform architecture and introduce feature tiers

* consolidate DomainReport as canonical data model
* add feature tier system (free/pro/data+ scaffolding)
* apply clean feature gating across workflows and tracking
* refactor app structure for maintainability
* standardize navigation and settings
* add data lifecycle controls
* ensure consistency across UI, export, and CLI
* stabilize internal inspection API

1 files changed, 2 insertions, 1 deletions

diff --git a/DomainDig/DomainDigApp.swift b/DomainDig/DomainDigApp.swift
index 29e0117..5eeed32 100644
--- a/DomainDig/DomainDigApp.swift
+++ b/DomainDig/DomainDigApp.swift
@@ -10,6 +10,7 @@ import SwiftUI
 @main
 struct DomainDigApp: App {
     @AppStorage(AppDensity.userDefaultsKey) private var density = AppDensity.compact.rawValue
+    @State private var viewModel = DomainViewModel()
 
     init() {
         LocalNotificationService.shared.configureForegroundPresentation()
@@ -17,7 +18,7 @@ struct DomainDigApp: App {
 
     var body: some Scene {
         WindowGroup {
-            ContentView()
+            RootTabView(viewModel: viewModel)
                 .environment(\.appDensity, AppDensity(rawValue: density) ?? .compact)
         }
     }