feat: custom stickers apis

internal/repository/sadhna_reward_repo.go

@@ -187,6 +187,25 @@ func (r *RewardRepo) CreateGrant(ctx context.Context, userID, rewardID string, m
 	return nil
 }
 
+// CreateCustom adds a reward to the catalog from the admin panel.
+//
+// Custom entries survive re-seeding: Seed upserts only the keys in its
+// embedded JSON, and these keys are namespaced away from those.
+func (r *RewardRepo) CreateCustom(ctx context.Context, key, name, meaning, imageURL string) (*model.SadhnaReward, error) {
+	var w model.SadhnaReward
+	err := r.pg.Pool.QueryRow(ctx, `
+		INSERT INTO sadhna_rewards (key, name, meaning, image_url, active, sort)
+		-- Sorted after the seeded catalog so custom gifts don't reshuffle it.
+		VALUES ($1, $2, $3, $4, true, 1000)
+		RETURNING id, key, name, meaning, image_url, active, sort`,
+		key, name, meaning, imageURL,
+	).Scan(&w.ID, &w.Key, &w.Name, &w.Meaning, &w.ImageURL, &w.Active, &w.Sort)
+	if err != nil {
+		return nil, fmt.Errorf("create custom reward: %w", err)
+	}
+	return &w, nil
+}
+
 // ByKey looks up one reward from the catalog.
 func (r *RewardRepo) ByKey(ctx context.Context, key string) (*model.SadhnaReward, error) {
 	var w model.SadhnaReward