feat(ECR-025): OpsCMS FeedSlot 只读并 Closed

栏目位目录（ops_feed_slots + /cms），复用 admin.cms.read。

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

apps/api/internal/repository/cms_repo.go

@@ -65,3 +65,54 @@ func (r *AdminRepo) GetBanner(ctx context.Context, id uuid.UUID) (*BannerRow, er
 	}
 	return &b, nil
 }
+
+// FeedSlotRow is OpsCMS FeedSlot catalog row.
+type FeedSlotRow struct {
+	ID        uuid.UUID `json:"id"`
+	Code      string    `json:"code"`
+	Title     string    `json:"title"`
+	SlotKey   string    `json:"slot_key"`
+	Placement string    `json:"placement"`
+	Active    bool      `json:"active"`
+	System    bool      `json:"system"`
+	UpdatedAt time.Time `json:"updated_at"`
+}
+
+// ListFeedSlots returns feed slot catalog.
+func (r *AdminRepo) ListFeedSlots(ctx context.Context) ([]FeedSlotRow, error) {
+	rows, err := r.Pool.Query(ctx, `
+		SELECT id, code, title, slot_key, placement, active, system, updated_at
+		FROM ops_feed_slots
+		ORDER BY active DESC, code ASC`)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+	var out []FeedSlotRow
+	for rows.Next() {
+		var s FeedSlotRow
+		if err := rows.Scan(
+			&s.ID, &s.Code, &s.Title, &s.SlotKey, &s.Placement, &s.Active, &s.System, &s.UpdatedAt,
+		); err != nil {
+			return nil, err
+		}
+		out = append(out, s)
+	}
+	return out, rows.Err()
+}
+
+// GetFeedSlot loads one feed slot by id.
+func (r *AdminRepo) GetFeedSlot(ctx context.Context, id uuid.UUID) (*FeedSlotRow, error) {
+	var s FeedSlotRow
+	err := r.Pool.QueryRow(ctx, `
+		SELECT id, code, title, slot_key, placement, active, system, updated_at
+		FROM ops_feed_slots WHERE id=$1`, id,
+	).Scan(&s.ID, &s.Code, &s.Title, &s.SlotKey, &s.Placement, &s.Active, &s.System, &s.UpdatedAt)
+	if errors.Is(err, pgx.ErrNoRows) {
+		return nil, err
+	}
+	if err != nil {
+		return nil, err
+	}
+	return &s, nil
+}