Folder: `services/user-study-stats/`

this folder is one drawer in the backend filing cabinet.

record-practice-attempt-analytics.ts

Path: src/services/user-study-stats/record-practice-attempt-analytics.ts

Header from code: record-practice-attempt-analytics.ts

RECORD PRACTICE ATTEMPT ANALYTICS — streaks + rollups per attempt

Path: src/services/user-study-stats/record-recent-practice-subtopic.ts

Header from code: record-recent-practice-subtopic.ts

RECORD RECENT PRACTICE SUBTOPIC — “continue learning” recency list

Path: src/services/user-study-stats/study-stats-window.ts

Header from code: study-stats-window.ts

STUDY STATS WINDOW — IST day-key helpers for analytics range

Path: src/services/user-study-stats/study-stats.service.ts

Header from code: study-stats.service.ts

STUDY STATS SERVICE — dashboard aggregates for a user