Fix notification queries to exclude tasks from inactive residences

- task_repo.go: Add is_active filter to residence subquery in UserIDs filter
- handler.go: Add is_active filter to daily digest residence join
- onboarding_email_service.go: Fix Django table names and task status filter
- task_repo_test.go: Add regression tests for inactive residence filtering

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

internal/repositories/task_repo.go

@@ -62,9 +62,9 @@ func (r *TaskRepository) applyFilterOptions(query *gorm.DB, opts TaskFilterOptio
 	} else if len(opts.ResidenceIDs) > 0 {
 		query = query.Where("task_task.residence_id IN ?", opts.ResidenceIDs)
 	} else if len(opts.UserIDs) > 0 {
-		// For notifications: tasks assigned to users OR owned by users
+		// For notifications: tasks assigned to users OR owned by users (only from active residences)
 		query = query.Where(
-			"(task_task.assigned_to_id IN ? OR task_task.residence_id IN (SELECT id FROM residence_residence WHERE owner_id IN ?))",
+			"(task_task.assigned_to_id IN ? OR task_task.residence_id IN (SELECT id FROM residence_residence WHERE owner_id IN ? AND is_active = true))",
 			opts.UserIDs, opts.UserIDs,
 		)
 	}