feat(redis): add support for dedicated queue client configuration (#14840)

Fix https://github.com/twentyhq/core-team-issues/issues/452
Fix https://github.com/twentyhq/core-team-issues/issues/923

---------

Co-authored-by: Félix Malfait <felix@twenty.com>

packages/twenty-server/src/engine/core-modules/twenty-config/config-variables.ts

@@ -841,7 +841,22 @@ export class ConfigVariables {
   @ConfigVariablesMetadata({
     group: ConfigVariablesGroup.ServerConfig,
     isSensitive: true,
-    description: 'URL for cache storage (e.g., Redis connection URL)',
+    description: 'Redis connection URL used for cache and queues by default',
+    isEnvOnly: true,
+    type: ConfigVariableType.STRING,
+  })
+  @IsUrl({
+    protocols: ['redis', 'rediss'],
+    require_tld: false,
+    allow_underscores: true,
+  })
+  REDIS_URL: string;
+
+  @ConfigVariablesMetadata({
+    group: ConfigVariablesGroup.ServerConfig,
+    isSensitive: true,
+    description:
+      'Optional separate Redis connection for queues with a different eviction policy (advanced production use case, most self-hosters do not need this)',
     isEnvOnly: true,
     type: ConfigVariableType.STRING,
   })
@@ -851,7 +866,7 @@ export class ConfigVariables {
     require_tld: false,
     allow_underscores: true,
   })
-  REDIS_URL: string;
+  REDIS_QUEUE_URL: string;
 
   @ConfigVariablesMetadata({
     group: ConfigVariablesGroup.ServerConfig,