fix: Logout all users instead of redis session migration for tenant to org migration (#39392)

…overcome performance bottleneck for redis session migration

## Description
> [!TIP]  
> _Add a TL;DR when the description is longer than 500 words or
extremely technical (helps the content, marketing, and DevRel team)._
>
> _Please also include relevant motivation and context. List any
dependencies that are required for this change. Add links to Notion,
Figma or any other documents that might be relevant to the PR._


Fixes #`Issue Number`  
_or_  
Fixes `Issue URL`
> [!WARNING]  
> _If no issue exists, please create an issue first, and check with the
maintainers if the issue is valid._

## Automation

/ok-to-test tags=""

### 🔍 Cypress test results
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> If you modify the content in this section, you are likely to disrupt
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## Communication
Should the DevRel and Marketing teams inform users about this change?
- [ ] Yes
- [ ] No


<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->

## Summary by CodeRabbit

- **Bug Fixes**
- Optimized the migration process to avoid startup delays in clustered
environments.
- **New Features**
- Added a new migration step that clears cached data to help ensure
system freshness.

These updates enhance overall startup performance and improve data
freshness for a smoother user experience.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

app/server/appsmith-server/src/main/java/com/appsmith/server/migrations/db/ce/Migration065_CopyTenantIdToOrganizationId.java

@@ -57,7 +57,10 @@ public class Migration065_CopyTenantIdToOrganizationId {
     public void execute() {
         migrateTenantCollection();
         migrateMongoCollections();
-        migrateRedisData();
+
+        // Removing this for environments where the migration hasn't run yet since for k8 clusters with default
+        // configurations, the redis session migration is taking longer than startup probe (which is 2 minutes).
+        //        migrateRedisData();
     }
 
     private void migrateTenantCollection() {

app/server/appsmith-server/src/main/java/com/appsmith/server/migrations/db/ce/Migration066_CacheBustTenantOrgMigration.java

@@ -0,0 +1,58 @@
+package com.appsmith.server.migrations.db.ce;
+
+import io.mongock.api.annotations.ChangeUnit;
+import io.mongock.api.annotations.Execution;
+import io.mongock.api.annotations.RollbackExecution;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Qualifier;
+import org.springframework.data.redis.core.ReactiveRedisOperations;
+import org.springframework.data.redis.core.ScanOptions;
+import reactor.core.publisher.Flux;
+import reactor.core.publisher.Mono;
+
+import java.nio.ByteBuffer;
+import java.util.concurrent.atomic.AtomicInteger;
+
+@Slf4j
+@ChangeUnit(order = "066", id = "cache-bust-tenant-org-migration")
+public class Migration066_CacheBustTenantOrgMigration {
+    @RollbackExecution
+    public void rollbackExecution() {}
+
+    @Execution
+    public void execute(
+            @Qualifier("reactiveRedisOperations") ReactiveRedisOperations<String, Object> reactiveRedisOperations) {
+        log.info("Starting cache bust migration");
+        scanForKeysAcrossCluster(reactiveRedisOperations, "*").block();
+        log.info("Completed cache bust migration");
+    }
+
+    private Mono<Void> scanForKeysAcrossCluster(
+            ReactiveRedisOperations<String, Object> reactiveRedisOperations, String pattern) {
+        AtomicInteger deletedKeysCount = new AtomicInteger(0);
+
+        return reactiveRedisOperations
+                .execute(connection -> {
+                    Flux<ByteBuffer> scanFlux = connection
+                            .keyCommands()
+                            .scan(ScanOptions.scanOptions()
+                                    .match(pattern)
+                                    .count(1000)
+                                    .build());
+
+                    return scanFlux.flatMap(scannedKey -> connection
+                                    .keyCommands()
+                                    .del(scannedKey)
+                                    .doOnSuccess(result -> {
+                                        int count = deletedKeysCount.incrementAndGet();
+                                        if (count % 10000 == 0) {
+                                            log.info("Processed {} Redis keys", count);
+                                        }
+                                    }))
+                            .then()
+                            .doOnSuccess(v -> log.info("Total Redis keys processed: {}", deletedKeysCount.get()))
+                            .doOnError(error -> log.error("Redis key deletion error: {}", error.getMessage()));
+                })
+                .then();
+    }
+}