feat: Add ASDF lottery system with activity requirement (v121.0)

.env.example

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+# ASDForecast Environment Variables
+# Copy this file to .env and fill in your values
+
+# ===================
+# REQUIRED
+# ===================
+
+# Helius API key for Solana RPC (https://helius.dev)
+HELIUS_API_KEY=your_helius_api_key
+
+# House wallet keypair as JSON array (for payouts)
+# Generate with: solana-keygen new --outfile house-wallet.json
+SOLANA_WALLET_JSON={"privateKey":[1,2,3,...]}
+
+# Admin password for control panel endpoints
+ADMIN_ACTION_PASSWORD=your_secure_password
+
+# ===================
+# OPTIONAL
+# ===================
+
+# Server port (default: 3000)
+PORT=3000
+
+# CoinGecko API key for price data (https://coingecko.com/api)
+COINGECKO_API_KEY=
+
+# Jupiter API key (optional, for token prices)
+JUPITER_API_KEY=
+
+# ===================
+# IMAGES (optional)
+# ===================
+
+# Custom images for the frontend
+BASE_IMAGE_SRC=
+ITSFINE_IMG_SRC=
+ITSOVER_IMG_SRC=
+SENTIMENT_UP_IMG_SRC=
+SENTIMENT_DOWN_IMG_SRC=

.gitignore

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+# Dependencies
+node_modules/
+
+# Environment variables
+.env
+.env.local
+.env.*.local
+
+# Data persistence (production data)
+data/
+/var/data/
+
+# Wallet keys (NEVER commit)
+*.json.key
+house-wallet.json
+*-wallet.json
+*-keypair.json
+
+# Logs
+logs/
+*.log
+npm-debug.log*
+
+# OS generated files
+.DS_Store
+.DS_Store?
+._*
+.Spotlight-V100
+.Trashes
+ehthumbs.db
+Thumbs.db
+
+# IDE / Editor
+.idea/
+.vscode/
+*.swp
+*.swo
+*~
+
+# Build outputs
+dist/
+build/
+
+# Test coverage
+coverage/
+
+# Temporary files
+tmp/
+temp/
+*.tmp
+
+# Package lock (optional - uncomment if you want to ignore)
+# package-lock.json