Rebrand entire project from Feels to Reflect

Complete rename across all bundle IDs, App Groups, CloudKit containers,
StoreKit product IDs, data store filenames, URL schemes, logger subsystems,
Swift identifiers, user-facing strings (7 languages), file names, directory
names, Xcode project, schemes, assets, and documentation.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Shared/Onboarding/views/OnboardingWelcome.swift

@@ -1,6 +1,6 @@
 //
 //  OnboardingWelcome.swift
-//  Feels
+//  Reflect
 //
 //  Created by Claude Code on 12/10/24.
 //
@@ -38,7 +38,7 @@ struct OnboardingWelcome: View {
                 .padding(.bottom, 40)
 
                 // Title
-                Text("Welcome to Feels")
+                Text("Welcome to Reflect")
                     .font(.largeTitle.weight(.bold))
                     .foregroundColor(.white)
                     .padding(.bottom, 12)