Fix AcceptError

✅ Solution

The "AcceptError" in zig-language often occurs due to discrepancies between the expected error types defined in the `std.os` and specific POSIX implementations (e.g., differing `errno` values returned after `accept()`). To fix this, carefully map the `errno` values from the POSIX API into the corresponding `std.os.Error` enum values in `std.posix`, ensuring accurate and consistent error reporting across platforms, especially checking `.INVAL` and connection-related errors.