Remove remaining status_id references after in_progress migration

- Remove Preload("Status") from worker handler and repositories
- Update seeds to use in_progress boolean instead of status_id
- Remove task_taskstatus table creation from lookup seeds
- Update documentation to reflect in_progress boolean pattern

Fixes notification worker error:
"Status: unsupported relations for schema Task"

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

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

internal/worker/jobs/handler.go

@@ -117,7 +117,7 @@ func (h *Handler) HandleTaskReminder(ctx context.Context, task *asynq.Task) erro
 	// A task is "completed" when NextDueDate == nil AND has at least one completion.
 	// See internal/task/scopes.ScopeNotCompleted for the SQL equivalent.
 	var dueSoonTasks []models.Task
-	err = h.db.Preload("Status").Preload("Completions").Preload("Residence").
+	err = h.db.Preload("Completions").Preload("Residence").
 		Where("(due_date >= ? AND due_date < ?) OR (next_due_date >= ? AND next_due_date < ?)",
 			today, dayAfterTomorrow, today, dayAfterTomorrow).
 		Where("is_cancelled = false").
@@ -220,7 +220,7 @@ func (h *Handler) HandleOverdueReminder(ctx context.Context, task *asynq.Task) e
 	// A task is "completed" when NextDueDate == nil AND has at least one completion.
 	// See internal/task/scopes.ScopeNotCompleted for the SQL equivalent.
 	var overdueTasks []models.Task
-	err = h.db.Preload("Status").Preload("Completions").Preload("Residence").
+	err = h.db.Preload("Completions").Preload("Residence").
 		Where("due_date < ? OR next_due_date < ?", today, today).
 		Where("is_cancelled = false").
 		Where("is_archived = false").