refactor(channels): integrate channel runtime status management and enhance account status handling (#547)

tests/unit/channel-status.test.ts

@@ -0,0 +1,66 @@
+import { describe, expect, it } from 'vitest';
+import {
+  computeChannelRuntimeStatus,
+  pickChannelRuntimeStatus,
+} from '@/lib/channel-status';
+
+describe('channel runtime status helpers', () => {
+  it('treats healthy running channels as connected', () => {
+    expect(
+      computeChannelRuntimeStatus({
+        running: true,
+        connected: false,
+        linked: false,
+      }),
+    ).toBe('connected');
+  });
+
+  it('treats successful probes as connected for forward compatibility', () => {
+    expect(
+      computeChannelRuntimeStatus({
+        probe: { ok: true },
+        running: false,
+      }),
+    ).toBe('connected');
+  });
+
+  it('returns error when runtime reports a lastError', () => {
+    expect(
+      computeChannelRuntimeStatus({
+        running: true,
+        lastError: 'bot token invalid',
+      }),
+    ).toBe('error');
+  });
+
+  it('returns disconnected for empty runtime state', () => {
+    expect(computeChannelRuntimeStatus({})).toBe('disconnected');
+  });
+
+  it('keeps connected status when another account has an error', () => {
+    expect(
+      pickChannelRuntimeStatus([
+        { connected: true },
+        { lastError: 'boom' },
+      ]),
+    ).toBe('connected');
+  });
+
+  it('treats multi-account healthy running channels as connected', () => {
+    expect(
+      pickChannelRuntimeStatus([
+        { running: true, connected: false },
+        { running: true, connected: false },
+      ]),
+    ).toBe('connected');
+  });
+
+  it('uses summary-level errors when no account is connected', () => {
+    expect(
+      pickChannelRuntimeStatus(
+        [{ accountId: 'default', connected: false, running: false }],
+        { error: 'channel bootstrap failed' },
+      ),
+    ).toBe('error');
+  });
+});