tag-registry-product-link: seed 100 real preset IDs (seed-registry cmd), products/orders schema + tag linkage, fix case-sensitive tag-code bind

frontend/internal/db/models.go

@@ -8,6 +8,23 @@ import (
 	"github.com/jackc/pgx/v5/pgtype"
 )
 
+type Order struct {
+	ID        int64              `json:"id"`
+	AccountID pgtype.Int8        `json:"account_id"`
+	Status    string             `json:"status"`
+	CreatedAt pgtype.Timestamptz `json:"created_at"`
+	UpdatedAt pgtype.Timestamptz `json:"updated_at"`
+}
+
+type Product struct {
+	ID        int64              `json:"id"`
+	Sku       string             `json:"sku"`
+	Name      string             `json:"name"`
+	ItemType  pgtype.Text        `json:"item_type"`
+	CreatedAt pgtype.Timestamptz `json:"created_at"`
+	UpdatedAt pgtype.Timestamptz `json:"updated_at"`
+}
+
 type Scan struct {
 	ID             int64              `json:"id"`
 	TagID          int64              `json:"tag_id"`
@@ -33,6 +50,8 @@ type Tag struct {
 	CreatedAt   pgtype.Timestamptz `json:"created_at"`
 	UpdatedAt   pgtype.Timestamptz `json:"updated_at"`
 	SmsEnabled  bool               `json:"sms_enabled"`
+	ProductID   pgtype.Int8        `json:"product_id"`
+	OrderID     pgtype.Int8        `json:"order_id"`
 }
 
 type User struct {