logiguard fork v2: patched GPUI on verified 8c74db0 tree

Rebuilt from the exact zed-industries/zed @ 8c74db00c4053d6c0a9037863d7bd048658da4ca
tree (previous orphan was based on a stale/wrong fetch). Same 3-file patch:
  - serial.rs: add SerialKind::KeyboardEnter
  - client.rs: store wl_keyboard.enter serial; add latest_serial_of()
  - window.rs: activate() uses keyboard-enter serial (Mutter focus gate)

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

.cargo/config.toml

@@ -0,0 +1,24 @@
+[build]
+# v0 mangling scheme provides more detailed backtraces around closures
+rustflags = ["-C", "symbol-mangling-version=v0", "--cfg", "tokio_unstable"]
+
+[alias]
+xtask = "run --package xtask --"
+perf-test = ["test", "--profile", "release-fast", "--lib", "--bins", "--tests", "--all-features", "--config", "target.'cfg(true)'.runner='cargo run -p perf --release'", "--config", "target.'cfg(true)'.rustflags=[\"--cfg\", \"perf_enabled\"]"]
+# Keep similar flags here to share some ccache
+perf-compare = ["run", "--profile", "release-fast", "-p", "perf", "--config", "target.'cfg(true)'.rustflags=[\"--cfg\", \"perf_enabled\"]", "--", "compare"]
+
+[target.'cfg(target_os = "windows")']
+rustflags = [
+    "--cfg",
+    "windows_slim_errors",        # This cfg will reduce the size of `windows::core::Error` from 16 bytes to 4 bytes
+    "-C",
+    "target-feature=+crt-static", # This fixes the linking issue when compiling livekit on Windows
+]
+
+# We need lld to link libwebrtc.a successfully on aarch64-linux
+[target.aarch64-unknown-linux-gnu]
+rustflags = ["-C", "link-arg=-fuse-ld=lld"]
+
+[env]
+MACOSX_DEPLOYMENT_TARGET = "10.15.7"