logiguard fork v3: full patch set on verified 8c74db0 tree

Includes prior-session patches (carry forward so the app compiles):
  - crates/gpui/build.rs: cross-compile manifest fix
  - crates/gpui/src/platform.rs: PlatformWindow::activate_with_token trait method
  - crates/gpui/src/window.rs: Window::activate_with_token public API
  - crates/gpui_linux/src/linux/wayland/window.rs: WaylandWindow::activate_with_token + activate() keyboard-serial fix

Plus the focus-serial fix:
  - serial.rs: SerialKind::KeyboardEnter
  - client.rs: store wl_keyboard.enter serial; latest_serial_of()

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

crates/denoise/examples/denoise.rs

@@ -0,0 +1,11 @@
+use rodio::{nz, source::UniformSourceIterator, wav_to_file};
+
+fn main() -> Result<(), Box<dyn std::error::Error>> {
+    let file = std::fs::File::open("airconditioning.wav")?;
+    let decoder = rodio::Decoder::try_from(file)?;
+    let resampled = UniformSourceIterator::new(decoder, nz!(1), nz!(16_000));
+
+    let mut denoised = denoise::Denoiser::try_new(resampled)?;
+    wav_to_file(&mut denoised, "denoised.wav")?;
+    Ok(())
+}