Add native self-hosted instance connection to fluxer_desktop

Trimmed monorepo checkout (fluxer_desktop + packages/voice_engine_v2 +
tools/ci) with a "Connect to a Different Server" menu item and popout
that lets the desktop app switch to any self-hosted Fluxer instance,
plus fixes for well-known discovery on single-domain self-hosted
deployments and a false-positive ERR_ABORTED on same-origin client
redirects during the switch. Defaults to chat.fluxr.chat and uses an
isolated userData directory from the official build.

fluxer_desktop/native/webrtc-sender/vendor/tract-linalg-0.23.1/benches/silu.rs

@@ -0,0 +1,40 @@
+use criterion::*;
+use tract_data::prelude::*;
+
+use tract_linalg::element_wise::ElementWiseKer;
+
+fn silu_f32(c: &mut Criterion) {
+    let mut group = c.benchmark_group("silu_f32");
+    group.throughput(Throughput::Elements(1024));
+    let mut input = unsafe { Tensor::uninitialized_aligned::<f32>(&[1024], 16).unwrap() };
+    let input = unsafe { input.as_slice_mut_unchecked::<f32>() };
+    for (i, x) in input.iter_mut().enumerate() {
+        *x = (i as f32 / 10.0).sin() * 5.0;
+    }
+    group.bench_function("rust_scalar", |b| b.iter(|| rust_scalar(input)));
+    group.bench_function("linalg", |b| b.iter(|| linalg(input)));
+    #[cfg(target_arch = "aarch64")]
+    group.bench_function("linalg-asm-compose", |b| {
+        b.iter(|| tract_linalg::arm64::arm64simd_silu_f32_4n::run(input, ()))
+    });
+    #[cfg(target_arch = "aarch64")]
+    group.bench_function("linalg-asm-fused", |b| {
+        b.iter(|| tract_linalg::arm64::arm64simd_silu_f32_4n_fused::run(input, ()))
+    });
+}
+
+#[inline(never)]
+fn rust_scalar(input: &mut [f32]) {
+    for x in input {
+        let sigmoid = 1.0 / (1.0 + (-*x).exp());
+        *x = *x * sigmoid;
+    }
+}
+
+#[inline(never)]
+fn linalg(input: &mut [f32]) {
+    (tract_linalg::ops().silu_f32)().run(input).unwrap();
+}
+
+criterion_group!(benches, silu_f32);
+criterion_main!(benches);