feat: enhance booking operations to support freight forwarder variants and improve consolidation handling

apps/edr-freight-api/src/seed/pricing-data.seeder.ts

@@ -447,18 +447,50 @@ private async seedWeightLimits(wlRepo: any, ctRepo: any): Promise<void> {
       { appliesTo: "OTHER", trigger: "CONSOLIDATION", rateType: "LASHING", rateValue: 50, rateUnit: "PER_CONTAINER" },
     ];
 
-    const entities = rateData.map((d) =>
-      rRepo.create({
+    // Idempotent: insert each canonical rate only if no row with the same
+    // signature already exists. Re-running the seeder must NOT accumulate
+    // duplicate rows — duplicated surcharge rates would otherwise repeat on
+    // every booking's price breakdown.
+    const signature = (r: {
+      rateType: string;
+      rateUnit: string;
+      rateValue: number;
+      currency: string;
+      containerTypeId?: string | null;
+      cargoTypeId?: string | null;
+    }) =>
+      [
+        r.rateType,
+        r.rateUnit,
+        Number(r.rateValue),
+        r.currency,
+        r.containerTypeId ?? "",
+        r.cargoTypeId ?? "",
+      ].join("|");
+
+    const existing: Rate[] = await rRepo.find();
+    const existingBySignature = new Set(existing.map((r) => signature(r)));
+
+    const toCreate = rateData
+      .map((d) => ({
         currency: "USD",
         ...d,
-        status: "LIVE",
+        status: "LIVE" as const,
         proposedByStaffId: STAFF_USER_ID,
         approvedByCeoId: CEO_USER_ID,
         approvedAt: now,
         effectiveFrom,
-      }),
-    );
-    return rRepo.save(entities);
+      }))
+      .filter((d) => !existingBySignature.has(signature(d)));
+
+    if (toCreate.length === 0) {
+      this.logger.log("Rates already seeded — skipping (idempotent)");
+      return existing;
+    }
+
+    const created = await rRepo.save(toCreate.map((d) => rRepo.create(d)));
+    this.logger.log(`Seeded ${created.length} new rate(s)`);
+    return [...existing, ...created];
   }
 
   private async seedDraftBookings(