feat: 初步增加 Windows 支持

src/video/capture/mod.rs

@@ -0,0 +1,12 @@
+//! Video capture implementations and capture-state helpers.
+
+pub(crate) mod runtime;
+pub(crate) mod status;
+
+#[cfg(unix)]
+mod linux;
+#[cfg(windows)]
+#[path = "windows.rs"]
+mod linux;
+
+pub use linux::*;