Air Guardian API

• Live Data
• Nearest Station (CBD)
• Nearby Playgrounds (GET)
• All Playgrounds
• Rolling 24h PM2.5 Trend
• Local Trends (7-day Summary)
• Weekly Air Quality Trend
• Hourly Risk Windows
• Quiz Start (GET)
• Quiz Submit (POST)
• Nearby Score (POST, see Swagger)
• OpenAPI JSON
• Swagger Docs
• Redoc Docs