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.

web/.env.example

@@ -0,0 +1,102 @@
+# ========================================
+# PezkuwiChain - Configuration Template
+# ========================================
+# Copy this file to .env and update with your actual values
+# WARNING: Never commit .env file to git!
+
+# ========================================
+# NETWORK CONFIGURATION
+# ========================================
+VITE_NETWORK=local
+# Options: mainnet, staging, testnet, beta, development, local
+
+# Network Endpoints (WebSocket)
+VITE_MAINNET_WS=wss://mainnet.pezkuwichain.io
+VITE_STAGING_WS=wss://staging.pezkuwichain.io
+VITE_TESTNET_WS=wss://testnet.pezkuwichain.io
+VITE_BETA_WS=wss://beta.pezkuwichain.io
+VITE_DEVELOPMENT_WS=ws://127.0.0.1:9944
+VITE_LOCAL_WS=ws://127.0.0.1:9945
+
+# Default active endpoint
+VITE_CHAIN_ENDPOINT=ws://127.0.0.1:9944
+
+# ========================================
+# AUTHENTICATION & SECURITY
+# ========================================
+# IMPORTANT: These credentials are for DEMO/TESTING ONLY
+# DO NOT use in production! DO NOT commit actual passwords!
+
+# Demo founder account (leave empty for production)
+VITE_DEMO_FOUNDER_EMAIL=
+VITE_DEMO_FOUNDER_PASSWORD=
+VITE_DEMO_FOUNDER_ID=founder-001
+
+# Enable demo mode (false in production)
+VITE_ENABLE_DEMO_MODE=true
+
+# ========================================
+# SUPABASE CONFIGURATION
+# ========================================
+# Get these from: https://supabase.com/dashboard/project/vsyrpfiwhjvahofxwytr/settings/api
+# 1. Project URL: Copy from "Project URL" section
+# 2. Anon key: Copy from "Project API keys" → "anon" → "public"
+
+VITE_SUPABASE_URL=https://vsyrpfiwhjvahofxwytr.supabase.co
+VITE_SUPABASE_ANON_KEY=your_supabase_anon_key_here
+
+# ========================================
+# SUBSTRATE ASSET IDs
+# ========================================
+# These correspond to assets in the Assets pallet
+
+VITE_ASSET_PEZ=1
+VITE_ASSET_HEZ=2
+VITE_ASSET_USDT=3
+VITE_ASSET_BTC=4
+VITE_ASSET_ETH=5
+VITE_ASSET_DOT=6
+
+# ========================================
+# CHAIN SPECIFICATIONS
+# ========================================
+VITE_CHAIN_NAME=PezkuwiChain
+VITE_CHAIN_TOKEN_SYMBOL=PEZ
+VITE_CHAIN_TOKEN_DECIMALS=12
+VITE_CHAIN_SS58_FORMAT=42
+
+# Chain IDs (generated from genesis hash)
+VITE_MAINNET_CHAIN_ID=0x1234abcd
+VITE_STAGING_CHAIN_ID=0x5678efgh
+VITE_TESTNET_CHAIN_ID=0x9abcijkl
+VITE_BETA_CHAIN_ID=0xdef0mnop
+VITE_DEV_CHAIN_ID=0xlocaldev
+VITE_LOCAL_CHAIN_ID=0xlocaltest
+
+# ========================================
+# EXPLORER & EXTERNAL SERVICES
+# ========================================
+
+# Polkadot.js Apps (default explorer)
+VITE_EXPLORER_URL=https://polkadot.js.org/apps/?rpc=
+
+# Custom block explorer (when available)
+VITE_CUSTOM_EXPLORER_URL=https://explorer.pezkuwichain.io
+
+# WebSocket for real-time updates
+VITE_WS_URL=wss://ws.pezkuwichain.io
+
+# ========================================
+# FEATURE FLAGS
+# ========================================
+VITE_ENABLE_KYC=false
+VITE_ENABLE_P2P_MARKET=true
+VITE_ENABLE_GOVERNANCE=true
+VITE_ENABLE_STAKING=true
+
+# ========================================
+# DEVELOPMENT & DEBUGGING
+# ========================================
+VITE_DEBUG_MODE=false
+VITE_LOG_LEVEL=info
+VITE_API_TIMEOUT=30000