feat: add jetton processing

guidebook/jetton-processing/.env.example

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+# Toncoin Payment Processing Configuration
+
+# Network Configuration
+# Set to "false" for mainnet, leave as "true" or omit for testnet
+IS_TESTNET=true
+
+# TonCenter API Key
+# Get your API key at https://toncenter.com (mainnet) or https://testnet.toncenter.com (testnet)
+# Or run your own API: https://github.com/toncenter/ton-http-api
+API_KEY=your_api_key_here
+
+# Wallet Address
+# Your wallet address that will receive deposits (for single-wallet examples)
+# Or your HOT wallet address (for multi-wallet examples)
+WALLET_ADDRESS=UQB22lH8P_P2OitCe8UYRxpuDF5GVqCfYTL7PDz3OzbuHebu

guidebook/jetton-processing/.gitignore

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+node_modules
+temp
+build
+dist
+.DS_Store
+package.ts
+
+# VS Code
+.vscode/*
+.history/
+*.vsix
+
+# IDEA files
+.idea
+
+# VIM
+Session.vim
+.vim/
+
+# Other private editor folders
+.nvim/
+.emacs/
+.helix/

guidebook/jetton-processing/.prettierignore

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+build

guidebook/jetton-processing/.prettierrc

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+{
+    "printWidth": 120,
+    "tabWidth": 4,
+    "singleQuote": true,
+    "bracketSpacing": true,
+    "semi": true
+}

guidebook/jetton-processing/README.md

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+# Jetton Payment Processing Examples
+
+Educational TypeScript examples demonstrating jetton (token) payment processing on the TON blockchain.
+
+## Libraries Used
+
+- [@ton/ton](https://github.com/ton-org/ton) - High-level TON blockchain API client
+- [@ton/core](https://github.com/ton-org/ton-core) - Core primitives for TON blockchain
+- [@ton/crypto](https://github.com/ton-org/ton-crypto) - Cryptographic primitives for TON
+
+## Examples
+
+### 1. Single Wallet with Invoices (`src/deposits/jetton-invoices.ts`)
+
+Demonstrates accepting jetton deposits to a single wallet using unique text comments (UUIDs) to identify each payment.
+
+**Use case**: Payment processing where each jetton payment is tracked by a unique identifier in the transfer notification comment.
+
+### 2. Multi-Wallet Jetton Deposits (`src/deposits/jetton-unique-addresses.ts`)
+
+Demonstrates accepting jetton deposits where each user has their own unique deposit wallet with associated jetton wallets.
+
+**Use case**: Exchange or service where users need permanent deposit addresses for multiple jetton types.
+
+## Setup
+
+1. Install dependencies:
+```bash
+npm install
+```
+
+2. Configure your environment:
+   - Copy `.env.example` to `.env`
+   - Set your API key and wallet address
+   - Configure supported jetton minters
+   - Choose mainnet or testnet
+
+3. Run an example:
+```bash
+# Single wallet invoices example
+npm start
+
+# Multi-wallet example
+npm run start:unique
+```
+
+## Development Scripts
+
+- `npm start` - Run the single-wallet invoices example
+- `npm run start:unique` - Run the multi-wallet jetton deposits example
+- `npm run build` - Type-check the project (does not produce executable output)
+- `npm run format` - Format code with Prettier
+
+## ⚠️ Educational Use Only
+
+These examples are for learning purposes. Do not deploy to production without:
+- Thorough security review
+- Proper error handling
+- Database persistence
+- Monitoring and alerting
+- Rate limiting and retry strategies
+- Proper jetton wallet validation