Update to v2.1.1 - Clean Design

CHANGELOG.md

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+# Changelog
+
+All notable changes to UrNetwork Stats Dashboard will be documented in this file.
+
+## [2.1.1] - 2024-11-21
+
+### ✨ Added
+- **Chart Interaction Mode** - Tooltips now show anywhere on chart, not just on data points
+- Custom tooltip callbacks with formatted values (3 decimal places + GB unit)
+- Better touch/mobile experience for charts
+- Login button in header when not logged in
+
+### 🎨 Improved
+- **Chart Text Visibility** - All text now white (#ffffff) instead of gray
+- Chart axis labels now #e5e7eb for better readability
+- Legend text is bold (weight 500) and larger (13px)
+- Tooltip styling with dark background and blue border (#3b82f6)
+- Login button styling (blue, prominent)
+
+### 🔧 Fixed
+- **Daily Cleanup** - Changed from weekly (Sunday) to daily (3 AM)
+- Keeps only last 7 days of data automatically
+- Chart text no longer black/invisible on dark background
+
+### 📊 Technical
+- Added `interaction.mode = 'index'` to all charts
+- Added `interaction.intersect = false` for easier tooltip display
+- Improved tooltip configuration with better colors and padding
+- Login button CSS with `.login-btn` class
+
+---
+
+## [2.1.0] - 2024-11-20
+
+### 🎯 Major Changes
+- **Clean Design** - Removed gradients, switched to solid Cloudflare-inspired colors
+- Changed from purple (#667eea) to blue (#3b82f6) theme
+- Solid background (#0c0d0e) instead of gradient
+- Removed all glassmorphism/blur effects
+
+### 📊 Chart Improvements
+- Better visibility with new color scheme
+- Increased chart line width from 1px to 2px
+- Better contrast for data visualization
+- Optimized for dark theme readability
+
+### 🎨 Design Updates
+- New stat cards without gradient backgrounds
+- Simplified header design
+- Cleaner button styles
+- Better border colors (#2d3135)
+- Improved text colors
+
+---
+
+## [2.0.0] - 2024-11-15
+
+### 🎯 Multi-Account Support (MAJOR UPDATE)
+- Track unlimited UrNetwork accounts simultaneously
+- Account management UI
+- Individual charts per account
+- Combined statistics
+- Account nicknames
+- Color-coded accounts
+
+### 🔐 Authentication Overhaul
+- Separate admin password
+- Secure session management
+- Account-level authentication
+
+### 📊 Dashboard Enhancements
+- React-powered private dashboard
+- View modes (combined, paid/unpaid, delta)
+- Chart visibility toggles
+- Improved layout
+
+### 💾 Database Changes
+- Multi-account schema
+- Foreign key relationships
+- Migration script from v1.0
+- Data preservation
+
+---
+
+## [1.0.0] - 2024-10-01
+
+### Initial Release
+- Single account tracking
+- Basic charts
+- Public/private dashboard
+- SQLite database
+- Webhook support
+- Web installer
+
+---
+
+**Full documentation:** [README.md](README.md)