v0.1.9

What's Included in this release:

Enhanced Visualizations:

• Professional chart design with clean typography
• Multiple map backgrounds (CartoDB, ESRI satellite/topo, OSM)
• Smart time formatting and intelligent tick intervals

Timezone conversion:

• --timezone flag for CLI and API
• Automatic DST handling
• Readable timestamp formatting

Better charts:

• Publication-ready speed and altitude profiles
• Human-readable time labels (11:30 AM vs 11:30:00)
• Comma-separated altitude values (35,000 ft)
• Timezone indicators on charts