feat: add delete account button in settings, implement all remaining achievements

- Add delete all data button with red danger style and confirmation prompt
- Add DeleteUserData repo method that wipes user from all tables in a transaction
- Add helper methods deleteAccountPrompt and deleteAccountConfirm
- Implement consistency_master, perfect_week, remote_veteran, onsite_master achievements
- Add GetDailyXPInRange and SumWorkSecondsByWorkType repo methods
- Update Dockerfile to alpine3.23, docker-compose to use env vars for proxy/paths

internal/repo/interface.go

@@ -44,6 +44,8 @@ type Repository interface {
 	UpsertDailyXP(userID int64, date string, xpEarned, workSeconds int64) error
 	SetDailyWorkSeconds(userID int64, date string, workSeconds int64) error
 	SumDailyWorkSeconds(userID int64) (int64, error)
+	GetDailyXPInRange(userID int64, start, end string) ([]domain.DailyXP, error)
+	SumWorkSecondsByWorkType(userID int64) (remoteSeconds, onsiteSeconds int64, _ error)
 
 	// Achievements
 	GetAchievementByCode(code string) (*domain.Achievement, error)
@@ -55,5 +57,6 @@ type Repository interface {
 	GetLeagueRankings(orderBy string) ([]domain.LeagueEntry, error)
 
 	// Lifecycle
+	DeleteUserData(userID int64) error
 	Close() error
 }

internal/repo/store.go

@@ -35,6 +35,38 @@ func NewStore(path string) (*Store, error) {
 	return &Store{db: db}, nil
 }
 
+func (s *Store) DeleteUserData(userID int64) error {
+	tx, err := s.db.Begin()
+	if err != nil {
+		return err
+	}
+	defer tx.Rollback()
+
+	if _, err := tx.Exec(`DELETE FROM events WHERE day_id IN (SELECT id FROM days WHERE user_id=?)`, userID); err != nil {
+		return err
+	}
+	if _, err := tx.Exec(`DELETE FROM days WHERE user_id=?`, userID); err != nil {
+		return err
+	}
+	if _, err := tx.Exec(`DELETE FROM user_achievements WHERE user_id=?`, userID); err != nil {
+		return err
+	}
+	if _, err := tx.Exec(`DELETE FROM daily_xp WHERE user_id=?`, userID); err != nil {
+		return err
+	}
+	if _, err := tx.Exec(`DELETE FROM user_rpg WHERE user_id=?`, userID); err != nil {
+		return err
+	}
+	if _, err := tx.Exec(`DELETE FROM user_settings WHERE user_id=?`, userID); err != nil {
+		return err
+	}
+	if _, err := tx.Exec(`DELETE FROM users WHERE id=?`, userID); err != nil {
+		return err
+	}
+
+	return tx.Commit()
+}
+
 func (s *Store) Close() error {
 	return s.db.Close()
 }
@@ -233,6 +265,57 @@ func (s *Store) SumDailyWorkSeconds(userID int64) (int64, error) {
 	return total, err
 }
 
+func (s *Store) GetDailyXPInRange(userID int64, start, end string) ([]domain.DailyXP, error) {
+	rows, err := s.db.Query(
+		`SELECT id, user_id, date, xp_earned, work_seconds, created_at
+		 FROM daily_xp WHERE user_id=? AND date >= ? AND date <= ?
+		 ORDER BY date`, userID, start, end,
+	)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+	var result []domain.DailyXP
+	for rows.Next() {
+		var x domain.DailyXP
+		if err := rows.Scan(&x.ID, &x.UserID, &x.Date, &x.XPEarned, &x.WorkSeconds, &x.CreatedAt); err != nil {
+			return nil, err
+		}
+		result = append(result, x)
+	}
+	return result, rows.Err()
+}
+
+func (s *Store) SumWorkSecondsByWorkType(userID int64) (remoteSeconds, onsiteSeconds int64, _ error) {
+	// Each day has a current_work_type_id. Daily XP work_seconds are per day.
+	// Join with days to get the day's primary work type, then sum by type.
+	rows, err := s.db.Query(`
+		SELECT COALESCE(d.current_work_type_id, 1), COALESCE(SUM(dx.work_seconds), 0)
+		FROM daily_xp dx
+		JOIN days d ON d.user_id = dx.user_id AND d.date = dx.date
+		WHERE dx.user_id = ? AND dx.work_seconds > 0
+		GROUP BY d.current_work_type_id
+	`, userID)
+	if err != nil {
+		return 0, 0, err
+	}
+	defer rows.Close()
+	for rows.Next() {
+		var wtID int64
+		var secs int64
+		if err := rows.Scan(&wtID, &secs); err != nil {
+			return 0, 0, err
+		}
+		switch wtID {
+		case 2:
+			remoteSeconds += secs
+		default:
+			onsiteSeconds += secs
+		}
+	}
+	return remoteSeconds, onsiteSeconds, rows.Err()
+}
+
 // Achievements
 
 func (s *Store) GetAchievementByCode(code string) (*domain.Achievement, error) {