- AnalyticsHelper: posting heatmap (7x24 grid), best times ranking,
per-service breakdown with success rates
- AnalyticsController: AJAX endpoint for dynamic heatmap filtering
- Analytics HtmlView: toolbar, dashboard link, submenu integration
- Template: heatmap table with color intensity, best times cards,
service breakdown table, service/period filters
- 16 new language strings for analytics UI
Authored-by: Moko Consulting
Closes#165