chore: initial commit - consolidate 4 projects into monorepo

Projects included:
- maerchenzauber (NestJS backend + Expo mobile + SvelteKit web + Astro landing)
- manacore (Expo mobile + SvelteKit web + Astro landing)
- manadeck (NestJS backend + Expo mobile + SvelteKit web)
- memoro (Expo mobile + SvelteKit web + Astro landing)

This commit preserves the current state before monorepo restructuring.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

memoro/apps/mobile/.env.dev.example

@@ -0,0 +1,25 @@
+# Development Environment Variables for Memoro App
+# Copy this to .env.dev and update with your values
+
+# Local Backend Service (when running locally)
+EXPO_PUBLIC_MEMORO_MIDDLEWARE_URL=http://localhost:3001
+
+# Supabase (can use production or a dev instance)
+EXPO_PUBLIC_SUPABASE_URL=https://npgifbrwhftlbrbaglmi.supabase.co
+EXPO_PUBLIC_SUPABASE_ANON_KEY=your_supabase_anon_key_here
+
+# App Configuration
+EXPO_PUBLIC_STORAGE_BUCKET=user-uploads
+
+# RevenueCat (optional for dev)
+EXPO_PUBLIC_REVENUECAT_IOS_KEY=
+EXPO_PUBLIC_REVENUECAT_ANDROID_KEY=
+
+# Google OAuth (optional for dev)
+EXPO_PUBLIC_GOOGLE_CLIENT_ID=
+EXPO_PUBLIC_GOOGLE_IOS_CLIENT_ID=
+EXPO_PUBLIC_GOOGLE_ANDROID_CLIENT_ID=
+
+# Analytics (optional for dev)
+EXPO_PUBLIC_UMAMI_WEBSITE_ID=
+EXPO_PUBLIC_UMAMI_API_URL=