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/handler/settings.go

@@ -112,6 +112,7 @@ func (h *Handler) buildSettingsKeyboard(user *domain.User, st *domain.UserSettin
 			{Text: fmt.Sprintf("Rate: %.2f", st.HourlyRate), CallbackData: "setrate"},
 			{Text: fmt.Sprintf("Currency: %s", st.Currency), CallbackData: "currency"},
 		},
+		{{Text: "Delete all data", CallbackData: "deleteaccount", Style: "danger"}},
 		{{Text: "Back to Menu", CallbackData: "back_menu"}},
 	}
 	return "Settings:", models.InlineKeyboardMarkup{InlineKeyboard: rows}
@@ -730,3 +731,26 @@ func (h *Handler) validateAndSaveReportTime(_ context.Context, _ int64, user *do
 	st.ReportTime = timeStr
 	return h.Repo.UpdateSettings(st)
 }
+
+func (h *Handler) deleteAccountPrompt(ctx context.Context, chatID int64, msgID int, cbID string, user *domain.User) {
+	defer h.answerCb(ctx, cbID)
+	kb := models.InlineKeyboardMarkup{
+		InlineKeyboard: [][]models.InlineKeyboardButton{
+			{
+				{Text: "Yes, delete everything", CallbackData: fmt.Sprintf("delaccount_%d", user.ID), Style: "danger"},
+				{Text: "Cancel", CallbackData: "back_settings"},
+			},
+		},
+	}
+	h.editText(ctx, chatID, msgID, "This will permanently delete ALL your data (events, days, RPG progress, settings, achievements).\nAre you sure?", &kb)
+}
+
+func (h *Handler) deleteAccountConfirm(ctx context.Context, chatID int64, msgID int, cbID string, user *domain.User) {
+	defer h.answerCb(ctx, cbID)
+	if err := h.Repo.DeleteUserData(user.ID); err != nil {
+		slog.Error("delete user data", "user_id", user.ID, "error", err)
+		h.editText(ctx, chatID, msgID, "Error deleting data. Please try again.", nil)
+		return
+	}
+	h.editText(ctx, chatID, msgID, "All your data has been deleted. You can start fresh by sending /start.", nil)
+}