feat(bandwidth-manager): Add profiles, parental controls, alerts, traffic graphs
Major feature expansion for luci-app-bandwidth-manager:
- Device Profiles: Gaming, Streaming, IoT, Work, Kids presets with
custom QoS settings, bandwidth limits, and latency modes
- Parental Controls: Quick preset modes (Bedtime, Homework, Family Time),
access schedules, content filtering categories
- Bandwidth Alerts: Threshold monitoring (80/90/100%), new device alerts,
email/SMS notifications with configurable settings
- Traffic Graphs: Real-time bandwidth charts, historical data visualization,
top talkers list, protocol breakdown pie charts
- Time Schedules: Full CRUD with day selection, limits, priority settings
Backend additions:
- ~30 new RPCD methods for all features
- Alert monitoring cron job (every 5 minutes)
- Shared alerts.sh library for email/SMS
Frontend views:
- profiles.js, parental-controls.js, alerts.js, traffic-graphs.js
- Shared graphs.js utility for canvas drawing
- parental.css for parental controls styling
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>