refactor(WebSocketShard): clear ws session only when explicitly reconnecting (#11601)

* refactor(WebSocketShard): clear ws session when explicitly reconnecting

* fix(ws): check for .resuming code

* fix(ws): actually correct clear logic

* refactor: flip

Co-authored-by: Almeida <github@almeidx.dev>

---------

Co-authored-by: Almeida <github@almeidx.dev>
Co-authored-by: kodiakhq[bot] <49736102+kodiakhq[bot]@users.noreply.github.com>

packages/ws/src/ws/WebSocketManager.ts

@@ -379,6 +379,12 @@ export class WebSocketManager extends AsyncEventEmitter<ManagerShardEventsMap> i
 		this.#token = token;
 	}
 
+	/**
+	 * Destroys all shards
+	 *
+	 * @remarks
+	 * To keep the shard(s) resumable, use the {@link CloseCodes.Resuming} code.
+	 */
 	public destroy(options?: Omit<WebSocketShardDestroyOptions, 'recover'>) {
 		return this.strategy.destroy(options);
 	}

packages/ws/src/ws/WebSocketShard.ts

@@ -360,7 +360,10 @@ export class WebSocketShard extends AsyncEventEmitter<WebSocketShardEventsMap> {
 		this.failedToConnectDueToNetworkError = false;
 
 		// Clear session state if applicable
-		if (options.recover !== WebSocketShardDestroyRecovery.Resume) {
+		if (
+			(options.recover !== WebSocketShardDestroyRecovery.Resume && options.code !== CloseCodes.Resuming) ||
+			options.code === CloseCodes.Normal
+		) {
 			await this.strategy.updateSessionInfo(this.id, null);
 		}