fix: harden reminders and state handling

src/main/meeting-detect.test.ts

@@ -21,6 +21,8 @@ const h = vi.hoisted(() => ({
   log: { info: vi.fn(), warn: vi.fn(), error: vi.fn(), debug: vi.fn() }
 }))
 
+const originalPlatform = process.platform
+
 vi.mock('node:child_process', () => ({
   exec: (cmd: string, opts: unknown, cb: ExecCb) => {
     h.calls += 1
@@ -39,8 +41,16 @@ async function load(): Promise<typeof import('./meeting-detect')> {
   return import('./meeting-detect')
 }
 
+function setPlatform(platform: NodeJS.Platform): void {
+  Object.defineProperty(process, 'platform', {
+    value: platform,
+    configurable: true
+  })
+}
+
 beforeEach(() => {
   vi.resetModules()
+  setPlatform('win32')
   h.calls = 0
   h.execImpl = (_cmd, _opts, cb) => cb(null, { stdout: '' })
   h.log.info.mockClear()
@@ -48,6 +58,7 @@ beforeEach(() => {
 })
 
 afterEach(() => {
+  setPlatform(originalPlatform)
   vi.restoreAllMocks()
 })
 
@@ -96,14 +107,9 @@ describe('isMeetingActive', () => {
   })
 
   it('на не-Windows возвращает false без вызова tasklist', async () => {
-    const original = process.platform
-    Object.defineProperty(process, 'platform', { value: 'linux' })
-    try {
-      const { isMeetingActive } = await load()
-      expect(await isMeetingActive()).toBe(false)
-      expect(h.calls).toBe(0)
-    } finally {
-      Object.defineProperty(process, 'platform', { value: original })
-    }
+    setPlatform('linux')
+    const { isMeetingActive } = await load()
+    expect(await isMeetingActive()).toBe(false)
+    expect(h.calls).toBe(0)
   })
 })