feat(desktop): add native Wayland toggle on Linux (#11971)

Co-authored-by: Brendan Allan <git@brendonovich.dev>

packages/desktop/src-tauri/src/linux_display.rs

@@ -0,0 +1,47 @@
+use serde::{Deserialize, Serialize};
+use serde_json::json;
+use std::path::PathBuf;
+use tauri::AppHandle;
+use tauri_plugin_store::StoreExt;
+
+use crate::constants::SETTINGS_STORE;
+
+pub const LINUX_DISPLAY_CONFIG_KEY: &str = "linuxDisplayConfig";
+
+#[derive(Default, Serialize, Deserialize)]
+struct DisplayConfig {
+    wayland: Option<bool>,
+}
+
+fn dir() -> Option<PathBuf> {
+    Some(dirs::data_dir()?.join("ai.opencode.desktop"))
+}
+
+fn path() -> Option<PathBuf> {
+    dir().map(|dir| dir.join(SETTINGS_STORE))
+}
+
+pub fn read_wayland() -> Option<bool> {
+    let path = path()?;
+    let raw = std::fs::read_to_string(path).ok()?;
+    let config = serde_json::from_str::<DisplayConfig>(&raw).ok()?;
+    config.wayland
+}
+
+pub fn write_wayland(app: &AppHandle, value: bool) -> Result<(), String> {
+    let store = app
+        .store(SETTINGS_STORE)
+        .map_err(|e| format!("Failed to open settings store: {}", e))?;
+
+    store.set(
+        LINUX_DISPLAY_CONFIG_KEY,
+        json!(DisplayConfig {
+            wayland: Some(value),
+        }),
+    );
+    store
+        .save()
+        .map_err(|e| format!("Failed to save settings store: {}", e))?;
+
+    Ok(())
+}