Add unit tests for channel utilities and configure testing environment

- Created a new test file `channels.test.ts` to cover utilities related to channel configurations and targets.
- Implemented tests for normalizing and grouping selected channels by type, as well as building channel targets from account data and cron history.
- Mocked necessary dependencies to isolate tests and ensure accurate results.
- Updated `vite.config.ts` to set up the testing environment with jsdom and enable global variables for tests.

electron/utils/agent-config.ts

@@ -4,6 +4,7 @@ import type { ProviderAccount } from '@runtime/lib/providers';
 import { DEFAULT_AGENT_ID, DEFAULT_MAIN_SESSION_SUFFIX, type AgentSummary, type AgentsSnapshot } from '@runtime/lib/agents';
 import { buildMainSessionKey, normalizeAgentId } from '@runtime/lib/models';
 import { getUserDataDir } from './paths';
+import { listStoredChannelTypes } from './channel-config';
 
 interface StoredAgentEntry {
   id: string;
@@ -237,6 +238,7 @@ function buildSnapshotFromStore(
   ];
 
   const configuredChannelTypes = Array.from(new Set([
+    ...listStoredChannelTypes(),
     ...Object.keys(channelOwners),
     ...Object.keys(channelAccountOwners).map((key) => key.split(':')[0]).filter(Boolean),
   ]));
@@ -498,3 +500,28 @@ export function clearChannelBinding(
   writeStore(store);
   return buildSnapshotFromStore(store, accounts, defaultAccountId);
 }
+
+export function clearAllChannelBindings(
+  channelType: string,
+  accounts: ProviderAccount[],
+  defaultAccountId: string | null,
+): AgentsSnapshot {
+  const normalizedChannelType = String(channelType ?? '').trim();
+  if (!normalizedChannelType) {
+    throw new Error('channelType is required');
+  }
+
+  const store = readStore();
+  const nextChannelOwners = { ...(store.channelOwners ?? {}) };
+  delete nextChannelOwners[normalizedChannelType];
+  store.channelOwners = nextChannelOwners;
+
+  const nextChannelAccountOwners = Object.fromEntries(
+    Object.entries(store.channelAccountOwners ?? {}).filter(([key]) => !key.startsWith(`${normalizedChannelType}:`)),
+  );
+  store.channelAccountOwners = nextChannelAccountOwners;
+
+  syncAgentChannelMembership(store, normalizedChannelType);
+  writeStore(store);
+  return buildSnapshotFromStore(store, accounts, defaultAccountId);
+}