fix: remove ws balance freshness guard

eslint-suppressions.json

@@ -158,11 +158,6 @@
       "count": 6
     }
   },
-  "packages/assets-controller/src/AssetsController.ts": {
-    "no-restricted-syntax": {
-      "count": 7
-    }
-  },
   "packages/assets-controller/src/__fixtures__/MockAssetControllerMessenger.ts": {
     "no-restricted-syntax": {
       "count": 4
@@ -851,11 +846,6 @@
       "count": 1
     }
   },
-  "packages/core-backend/src/ws/BackendWebSocketService.test.ts": {
-    "no-restricted-syntax": {
-      "count": 1
-    }
-  },
   "packages/core-backend/src/ws/BackendWebSocketService.ts": {
     "no-restricted-syntax": {
       "count": 5

packages/assets-controller/CHANGELOG.md

@@ -9,13 +9,18 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Changed
 
+- **BREAKING:** `AssetsController` messenger must now allow `AccountActivityService:balanceUpdated` so unified `assetsBalance` state receives real-time websocket balance updates when `AccountActivityService` owns the server subscription ([#9273](https://github.com/MetaMask/core/pull/9273))
 - Bump `@metamask/transaction-controller` from `^68.1.1` to `^68.2.0` ([#9253](https://github.com/MetaMask/core/pull/9253))
 
 ### Fixed
 
-- Fix stale token balances after transactions when switching accounts or when websocket subscriptions reconnect; `AssetsController` now fetches before re-subscribing on account switch, serializes overlapping refresh work, treats `getAssets({ forceUpdate: true })` as authoritative over recent websocket freshness guards, and prevents passive polling from overwriting websocket balances for 120 seconds ([#9265](https://github.com/MetaMask/core/pull/9265))
+- Fix stale token balances after transactions when switching accounts or when websocket subscriptions reconnect; `AssetsController` now fetches before re-subscribing on account switch and serializes overlapping refresh work ([#9265](https://github.com/MetaMask/core/pull/9265))
 - `AccountsApiDataSource` bypasses the TanStack Query balance cache when `forceUpdate` is true so forced refreshes return up-to-date balances instead of 60-second cached values ([#9265](https://github.com/MetaMask/core/pull/9265))
-- `BackendWebsocketDataSource` re-subscribes when subscribed accounts change (case-insensitive EVM address matching), serializes subscribe/unsubscribe to prevent races on account switch, and registers optional channel callbacks for more reliable notification delivery ([#9265](https://github.com/MetaMask/core/pull/9265))
+- `BackendWebsocketDataSource` re-subscribes when subscribed accounts change (case-insensitive EVM address matching), serializes subscribe/unsubscribe to prevent races on account switch, and registers channel callbacks as a fallback when server `subscriptionId` values do not match ([#9265](https://github.com/MetaMask/core/pull/9265))
+- Remove the 120-second websocket balance freshness guard that blocked force-refresh and polling updates from correcting stale websocket balances ([#9273](https://github.com/MetaMask/core/pull/9273))
+- `BackendWebsocketDataSource` registers subscription handlers before the subscribe handshake so in-flight account-activity notifications are not dropped, cleans up subscription state on subscribe failure, and resolves balance updates from stored subscription state when notifications arrive with stale subscription IDs ([#9273](https://github.com/MetaMask/core/pull/9273))
+- `AssetsController` refreshes data-source `activeChains`, re-subscribes, and force-fetches balances for the newly selected EVM chain when the user switches networks via `NetworkController:networkDidChange`
+- `AssetsController` bypasses the price deduper cache and fetches spot prices for assets on a newly selected or added EVM network only when those assets have no entry in `assetsPrice` yet; `DetectionMiddleware` queues newly detected assets for the same pipeline price fetch so RPC-detected tokens are priced without waiting for the poll interval
 
 ## [9.1.0]