Build Telegram Bot: NEAR Transaction Notifier

Description

## Overview
Create a Telegram bot that monitors NEAR accounts and sends notifications for transactions, staking rewards, and important events.

## Why This Matters
Telegram is popular in crypto. Real-time notifications keep users engaged with their NEAR activity.

## Technical Requirements

### Commands
```
/start - Set up the bot
/watch [account] - Monitor an account
/unwatch [account] - Stop monitoring
/list - Show watched accounts
/settings - Configure notification preferences
/balance [account] - Quick balance check
/tx [hash] - Transaction details
```

### Notification Types
1. **Incoming transfers** - "Received 10 NEAR from bob.near"
2. **Outgoing transfers** - "Sent 5 NEAR to alice.near"
3. **Staking rewards** - "Earned 0.5 NEAR from staking"
4. **Contract interactions** - "Contract call to ref-finance.near"
5. **Large transactions** - Whale alerts

### Implementation
- Telegram Bot API
- NEAR indexer for real-time events
- User preferences storage
- Multi-language support (optional)

## Deliverables
1. **Working Telegram bot**
2. **Real-time notifications**
3. **User preference storage**
4. **Deployment instructions**

## Budget: 6 NEAR