fix(tbank): isolate caches by connection generation

src/tbank/brokerage-operations.service.ts

@@ -40,8 +40,8 @@ export class BrokerageOperationsService {
     this.requestContext.set({ userId, brokerageAccountId: accountId });
     const range = this.range(query);
 
-    return this.access.withAccount(userId, accountId, ({ token }) =>
-      this.page(token, userId, accountId, query, range),
+    return this.access.withAccount(userId, accountId, ({ token, generation }) =>
+      this.page(token, generation, userId, accountId, query, range),
     );
   }
 
@@ -59,7 +59,7 @@ export class BrokerageOperationsService {
     return this.access.withAccount(
       userId,
       accountId,
-      async ({ token, account }) => {
+      async ({ token, generation, account }) => {
         const accountOpenedAt = account.openedDate?.seconds
           ? new Date(Number(account.openedDate.seconds) * 1000)
           : undefined;
@@ -69,7 +69,7 @@ export class BrokerageOperationsService {
           accountOpenedAt,
           pages: await Promise.all(
             selected.map((range) =>
-              this.collectRange(token, userId, accountId, range),
+              this.collectRange(token, generation, userId, accountId, range),
             ),
           ),
         };
@@ -79,6 +79,7 @@ export class BrokerageOperationsService {
 
   private async collectRange(
     token: string,
+    generation: string,
     userId: string,
     accountId: string,
     range: DateOnlyRange,
@@ -89,6 +90,7 @@ export class BrokerageOperationsService {
     do {
       const page = await this.page(
         token,
+        generation,
         userId,
         accountId,
         {
@@ -111,12 +113,13 @@ export class BrokerageOperationsService {
 
   private async page(
     token: string,
+    generation: string,
     userId: string,
     accountId: string,
     query: BrokerageOperationsQueryDto,
     range: { from: Date; to: Date },
   ): Promise<BrokerageOperationsPageDto> {
-    const key = cacheKey(userId, accountId, query, range);
+    const key = cacheKey(generation, userId, accountId, query, range);
     const cached = this.pages.get(key);
     if (cached) return cached;
     if (range.from > range.to) {
@@ -193,6 +196,7 @@ export class BrokerageOperationsService {
 }
 
 function cacheKey(
+  generation: string,
   userId: string,
   accountId: string,
   query: BrokerageOperationsQueryDto,
@@ -203,6 +207,7 @@ function cacheKey(
     ? range.to.toISOString()
     : Math.floor(range.to.valueOf() / freshForMs);
   return JSON.stringify({
+    generation,
     userId,
     accountId,
     from: range.from.toISOString(),