feat(ECR-026): OpsCMS ScheduledPublication 只读并 Closed

定时发布目录（ops_scheduled_publications），并加固 catalog 生成器。

Co-authored-by: Cursor <cursoragent@cursor.com>

apps/api/internal/repository/scheduled_publication_repo.go

@@ -0,0 +1,59 @@
+package repository
+
+import (
+	"context"
+	"errors"
+	"time"
+
+	"github.com/google/uuid"
+	"github.com/jackc/pgx/v5"
+)
+
+// ScheduledPublicationRow is ScheduledPublication catalog row.
+type ScheduledPublicationRow struct {
+	ID uuid.UUID `json:"id"`
+	Code string `json:"code"`
+	Title string `json:"title"`
+	TargetKind string `json:"target_kind"`
+	TargetCode string `json:"target_code"`
+	Active bool `json:"active"`
+	System bool `json:"system"`
+	UpdatedAt time.Time `json:"updated_at"`
+}
+
+// ListScheduledPublications returns ScheduledPublication catalog.
+func (r *AdminRepo) ListScheduledPublications(ctx context.Context) ([]ScheduledPublicationRow, error) {
+	rows, err := r.Pool.Query(ctx, `
+		SELECT id, code, title, target_kind, target_code, active, system, updated_at
+		FROM ops_scheduled_publications
+		ORDER BY active DESC, code ASC`)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+	var out []ScheduledPublicationRow
+	for rows.Next() {
+		var row ScheduledPublicationRow
+		if err := rows.Scan(&row.ID, &row.Code, &row.Title, &row.TargetKind, &row.TargetCode, &row.Active, &row.System, &row.UpdatedAt); err != nil {
+			return nil, err
+		}
+		out = append(out, row)
+	}
+	return out, rows.Err()
+}
+
+// GetScheduledPublication loads one by id.
+func (r *AdminRepo) GetScheduledPublication(ctx context.Context, id uuid.UUID) (*ScheduledPublicationRow, error) {
+	var row ScheduledPublicationRow
+	err := r.Pool.QueryRow(ctx, `
+		SELECT id, code, title, target_kind, target_code, active, system, updated_at
+		FROM ops_scheduled_publications WHERE id=$1`, id,
+	).Scan(&row.ID, &row.Code, &row.Title, &row.TargetKind, &row.TargetCode, &row.Active, &row.System, &row.UpdatedAt)
+	if errors.Is(err, pgx.ErrNoRows) {
+		return nil, err
+	}
+	if err != nil {
+		return nil, err
+	}
+	return &row, nil
+}