Update README with current features and supported tickers

Author: buzzkillb

README.md

@@ -5,25 +5,27 @@ Discord bot for tracking cryptocurrency and asset prices with beautiful charts.
 ## Features
 
 - Multiple independent bot instances, one per ticker
-- Real-time price updates via Pyth Network, Yahoo Finance, and GoldSilver.ai
-- Discord nicknames display ticker + current price
+- Real-time price updates via Pyth Network and Yahoo Finance
+- Discord nicknames display ticker and current price
 - Status cycles through BTC/ETH/SOL conversions and 1h change
 - Historical price charts with high/low markers
 - Detailed price embeds with 24h/7d/30d percentage changes
 - PostgreSQL for persistent price history
-- Lightweight Alpine-based Docker image (~266MB)
+- 5-year data retention with tiered aggregation (raw, 5m, hourly, daily, weekly)
+- Lightweight Alpine-based Docker image
 
 ## Quick Start
 
 ```bash
 cp .env.example .env
-# Edit .env with your Discord bot tokens
+# Edit .env with your Discord bot tokens and Pyth feed IDs
 docker-compose up -d --build
 ```
 
 ## Slash Commands
 
 ### /chart price
+
 Generate a price chart with high/low markers and percentage change.
 
 ```
@@ -35,6 +37,7 @@ Generate a price chart with high/low markers and percentage change.
 | timeframe | 24h | 1h, 6h, 12h, 24h, 48h, 1w, 2w, 30d, 3m |
 
 ### /price current
+
 Display current price with conversions and percentage changes.
 
 ```
@@ -48,22 +51,26 @@ Shows USD price, 24h/7d/30d changes, and BTC/ETH/SOL conversions.
 
 | Ticker | Source |
 |--------|--------|
-| BTC, ETH, SOL, and other Pyth feeds | Pyth Network |
+| BTC, ETH, SOL, WIF, FARTCOIN, GOLD, SILVER, MSTR, JLP, SEI, SUI, AVAX, BNB, PUMP, XPL, HOOD, SBET, 2Z, ASTER, DOGE, EURO, VOO, OIL | Pyth Network |
 | DXY | Yahoo Finance |
-| SSILVER | GoldSilver.ai |
 
 ## Environment Variables
 
 ```bash
-# Bot tokens - one per ticker
+# Price update interval (default: 12 seconds)
+UPDATE_INTERVAL_SECONDS=12
+
+# Discord Bot Tokens - one per ticker
 DISCORD_TOKEN_BTC=your_token
 DISCORD_TOKEN_ETH=your_token
+DISCORD_TOKEN_SOL=your_token
+# ... etc
 
-# Pyth feed IDs
+# Pyth Network Feed IDs (comma-separated)
 CRYPTO_FEEDS=BTC:feed_id,ETH:feed_id,SOL:feed_id
 
-# Optional
-UPDATE_INTERVAL_SECONDS=12
+# Database
+DATABASE_URL=postgresql://user:password@postgres:5432/pricebot
 ```
 
 ## Tech Stack
@@ -78,11 +85,23 @@ UPDATE_INTERVAL_SECONDS=12
 ## Project Structure
 
 ```
-├── bot.py            # Main bot, commands, status cycling
-├── database.py       # PostgreSQL operations
-├── price_service.py  # Price fetching
+├── bot.py             # Main bot, commands, status cycling
+├── database.py        # PostgreSQL operations and aggregation
+├── price_service.py  # Price fetching (Pyth + Yahoo)
 ├── chart_service.py  # Chart generation
 ├── docker-compose.yml
 ├── Dockerfile
-└── requirements.txt
+├── requirements.txt
+└── .env.example
 ```
+
+## Data Retention
+
+- Raw prices: last 24 hours
+- 5-minute aggregates: 7 days
+- Hourly aggregates: 30 days
+- Daily aggregates: 1 year
+- Weekly aggregates: 5 years
+- Older data: auto-deleted
+
+Chart queries automatically select the appropriate aggregation level.