Increase Windows exit delay from 50ms to 500ms

The 50ms delay was not sufficient to avoid libuv assertion errors
in CI environments. Increasing to 500ms to give pending I/O more
time to complete before process.exit() is called.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

sources/src/force-exit.ts

@@ -1,4 +1,4 @@
-const WINDOWS_EXIT_DELAY_MS = 50
+const WINDOWS_EXIT_DELAY_MS = 500
 
 export function getForcedExitDelayMs(platform: NodeJS.Platform = process.platform): number {
     return platform === 'win32' ? WINDOWS_EXIT_DELAY_MS : 0

sources/test/jest/force-exit.test.ts

@@ -14,7 +14,7 @@ describe('forceExit', () => {
         const exitSpy = jest.spyOn(process, 'exit').mockImplementation((() => undefined) as never)
 
         const exitPromise = forceExit('win32')
-        await jest.advanceTimersByTimeAsync(49)
+        await jest.advanceTimersByTimeAsync(499)
 
         expect(exitSpy).not.toHaveBeenCalled()
 
@@ -32,7 +32,7 @@ describe('forceExit', () => {
     })
 
     it('only delays on Windows', () => {
-        expect(getForcedExitDelayMs('win32')).toBe(50)
+        expect(getForcedExitDelayMs('win32')).toBe(500)
         expect(getForcedExitDelayMs('linux')).toBe(0)
         expect(getForcedExitDelayMs('darwin')).toBe(0)
     })