update guides for new API

Author: a-zorina

src/develop/graphql-pagination.md

@@ -8,6 +8,8 @@ While it might seem more convenient and simple, this is a sub-optimal practice.
 
 [GraphQL Blockchain API](https://docs.evercloud.dev/reference/graphql-api/blockchain) was developed for this exact reason - to provide a reliable way of blockchain data pagination and prevent any potential data inconsistencies regardless of network load.
 
+**Note**: With [GraphQL API 1.0](https://docs.evercloud.dev/reference/breaking-changes/migration-guides/graphql-api-1.0-migration) update by default Blockchain API provides only data for the past 7 days. For use cases where earlier data is needed make sure to use the 'archive: true' flag in blockchain query filters, as shown in the samples below. Do not however use it, if archive data isn't required, as it will generate unnecessary load.
+
 **Note**: Query Collections are a supported instrument and will remain so. However, they are intended and optimized primarily for tasks that are not critically dependent on data completeness, such as analytics.
 
 ## Blocks Pagination with Blockchain API
@@ -28,6 +30,7 @@ query {
                 end: 2670661
             }
             workchain: 0
+            archive: true
         ) {
             edges {
                 node {
@@ -115,6 +118,7 @@ query {
             after: "52899360053806ff11d"
             first: 10
             workchain: 0
+            archive: true
         ) {
             edges {
                 node {
@@ -205,6 +209,7 @@ query {
                 end: 2670661
             }
             workchain: 0
+            archive: true
         ) {
             edges {
                 node {
@@ -278,6 +283,7 @@ query {
             after: "528be5b005381da811c00"
             first: 10
             workchain: 0
+            archive: true
         ) {
             edges {
                 node {

src/develop/recipes/backend-integration.md

@@ -580,6 +580,8 @@ In these samples JS SDK is used. [Bindings](https://docs.everos.dev/ever-sdk/#co
 
 The [pagination](https://github.com/tonlabs/sdk-samples/tree/master/demo/paginate-transactions) sample queries and displays transactions in workchain 0 (workchain where simple transfers happen, -1 workchain is masterchain where you can find service transactions and validator transactions) from the beginning. We can get all the transaction and filter by account addresses on the backend side.
 
+**Note**: By default the Blockchain API queries, such as the one used here provide only data from the past 7 days. To retrieve older data, make sure to use the `archive: true` flag, as shown in the sample:
+
 ```typescript
    async function main(client: TonClient) {
     // In this example, we want the query to return 2 items per page.
@@ -595,6 +597,7 @@ The [pagination](https://github.com/tonlabs/sdk-samples/tree/master/demo/paginat
             blockchain {
                 transactions(
                     workchain: 0
+                    archive: true
                     first: $count
                     after: $cursor
                  ) {