Reorganize repository into monorepo structure

Restructured the project to support multiple frontend applications:
- Move web app to web/ directory
- Create pezkuwi-sdk-ui/ for Polkadot SDK clone (planned)
- Create mobile/ directory for mobile app development
- Add shared/ directory with common utilities, types, and blockchain code
- Update README.md with comprehensive documentation
- Remove obsolete DKSweb/ directory

This monorepo structure enables better code sharing and organized
development across web, mobile, and SDK UI projects.

mobile/README.md

@@ -0,0 +1,50 @@
+# Pezkuwi Mobile App
+
+**Status:** 🚧 In Development - Early Stage
+
+Mobile application for Pezkuwi blockchain.
+
+## Current Progress
+
+- ✅ Welcome page with language selection
+- ✅ Human verification page
+- ✅ Sign in / Sign up pages
+- ✅ Main dashboard top navigation
+- ⏳ Wallet page (pending - needs Polkadot.js integration)
+- ⏳ Additional features
+
+## Technology Stack
+
+**To be determined:**
+- React Native
+- Flutter
+- Ionic/Capacitor
+
+## Planned Features
+
+### Core Functionality
+- Wallet management with Polkadot.js extension integration
+- Real-time blockchain data (similar to web app)
+- Multi-language support (EN, TR, KMR, CKB, AR, FA)
+- Biometric authentication
+- Push notifications
+
+### Pages/Screens
+- Welcome & Language Selection ✅
+- Human Verification ✅
+- Authentication (Sign In/Up) ✅
+- Main Dashboard ✅
+- Wallet (Connect to Polkadot.js) ⏳
+- Staking
+- Governance
+- DEX/Swap
+- Transaction History
+- Settings & Profile
+
+## Development Guidelines
+
+- Use shared code from `../shared/` directory
+- Maintain consistency with web app UX
+- Follow mobile-first design principles
+- Implement proper error handling
+- Add comprehensive logging