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/language_model_core/Cargo.toml

@@ -0,0 +1,27 @@
+[package]
+name = "language_model_core"
+version = "0.1.0"
+edition.workspace = true
+publish.workspace = true
+license = "GPL-3.0-or-later"
+
+[lints]
+workspace = true
+
+[lib]
+path = "src/language_model_core.rs"
+doctest = false
+
+[dependencies]
+anyhow.workspace = true
+async-lock.workspace = true
+cloud_llm_client.workspace = true
+futures.workspace = true
+gpui_shared_string.workspace = true
+http_client.workspace = true
+partial-json-fixer.workspace = true
+schemars.workspace = true
+serde.workspace = true
+serde_json.workspace = true
+strum.workspace = true
+thiserror.workspace = true