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>

crates/language_core/src/lsp_adapter.rs

@@ -0,0 +1,44 @@
+use gpui_shared_string::SharedString;
+use serde::{Deserialize, Serialize};
+
+/// Converts a value into an LSP position.
+pub trait ToLspPosition {
+    /// Converts the value into an LSP position.
+    fn to_lsp_position(self) -> lsp::Position;
+}
+
+/// Context provided to LSP adapters when a user responds to a ShowMessageRequest prompt.
+/// This allows adapters to intercept preference selections (like "Always" or "Never")
+/// and potentially persist them to Zed's settings.
+#[derive(Debug, Clone)]
+pub struct PromptResponseContext {
+    /// The original message shown to the user
+    pub message: String,
+    /// The action (button) the user selected
+    pub selected_action: lsp::MessageActionItem,
+}
+
+#[derive(Clone, Debug, PartialEq, Eq)]
+pub enum LanguageServerStatusUpdate {
+    Binary(BinaryStatus),
+    Health(ServerHealth, Option<SharedString>),
+}
+
+#[derive(Debug, PartialEq, Eq, Deserialize, Serialize, Clone, Copy)]
+#[serde(rename_all = "camelCase")]
+pub enum ServerHealth {
+    Ok,
+    Warning,
+    Error,
+}
+
+#[derive(Clone, Debug, PartialEq, Eq)]
+pub enum BinaryStatus {
+    None,
+    CheckingForUpdate,
+    Downloading,
+    Starting,
+    Stopping,
+    Stopped,
+    Failed { error: String },
+}