Fix currency rate not applied on first price insert

The upsert doUpdate path (with rate conversion) only runs on conflict.
On first insert, prices were stored in USD regardless of selected currency.
Changed AssetPrice.record to accept rate parameter so both INSERT and
UPDATE paths write correctly converted prices.

Author: DRadmir

Packages/Store/Sources/Models/PriceRecord.swift

@@ -89,10 +89,10 @@ extension PriceRecord: Identifiable {
 }
 
 extension AssetPrice {
-    var record: PriceRecord {
-        return PriceRecord(
+    func record(rate: Double) -> PriceRecord {
+        PriceRecord(
             assetId: assetId,
-            price: price,
+            price: price * rate,
             priceUsd: price,
             priceChangePercentage24h: priceChangePercentage24h
         )

Packages/Store/Sources/Stores/PriceStore.swift

@@ -29,7 +29,7 @@ public struct PriceStore: Sendable {
         let rate = try getRate(currency: currency)
         try db.write { db in
             for assetPrice in prices {
-                let _ = try assetPrice.record.upsertAndFetch(
+                let _ = try assetPrice.record(rate: rate.rate).upsertAndFetch(
                     db,
                     onConflict: [],
                     doUpdate: { _ in [

Packages/Store/Tests/StoreTests/PriceStoreTests.swift

@@ -0,0 +1,29 @@
+// Copyright (c). Gem Wallet. All rights reserved.
+
+import Testing
+import Store
+import Primitives
+import PrimitivesTestKit
+import StoreTestKit
+
+struct PriceStoreTests {
+
+    @Test
+    func firstInsertAppliesCurrencyRate() throws {
+        let db = DB.mockWithChains([.ethereum])
+        let priceStore = PriceStore(db: db)
+        let fiatRateStore = FiatRateStore(db: db)
+
+        let assetId = Chain.ethereum.assetId
+        let rate = 90.0
+        let priceUsd = 2500.0
+        let currency = Currency.rub.rawValue
+
+        try fiatRateStore.add([FiatRate(symbol: currency, rate: rate)])
+        try priceStore.updatePrices(prices: [.mock(assetId: assetId, price: priceUsd)], currency: currency)
+
+        let result = try priceStore.getPrices(for: [assetId.identifier])
+
+        #expect(result.first?.price == priceUsd * rate)
+    }
+}