feat(sync): 按 Vault 持久化可移植侧栏布局

frontend/src-tauri/src/preference_records.rs

@@ -4,6 +4,13 @@ use serde::Deserialize;
 use serde_json::Value;
 #[derive(Deserialize)]
 #[serde(deny_unknown_fields, rename_all = "camelCase")]
+struct Layout {
+    primary_expanded: bool,
+    workspace_width: f64,
+    chat_width: f64,
+}
+#[derive(Deserialize)]
+#[serde(deny_unknown_fields, rename_all = "camelCase")]
 struct Level {
     size: f64,
     weight: u16,
@@ -84,6 +91,12 @@ fn markdown(value: &Markdown) -> bool {
 }
 pub fn validate(kind: &str, value: &Value) -> Result<()> {
     let valid = match kind {
+        "layout" => {
+            let value: Layout = decode(value)?;
+            let _ = value.primary_expanded;
+            (200.0..=520.0).contains(&value.workspace_width)
+                && (200.0..=520.0).contains(&value.chat_width)
+        }
         "theme_settings" => {
             let value: Theme = decode(value)?;
             let _ = value.headings.custom;
@@ -144,6 +157,23 @@ mod tests {
     use super::*;
     use serde_json::json;
     #[test]
+    fn layout_schema_limits_widths_and_rejects_device_fields() {
+        let good = json!({"primaryExpanded":true,"workspaceWidth":400.5,"chatWidth":320});
+        let path = crate::records::path_for("layout", "sidebars").unwrap();
+        assert!(crate::records::allowed(&path));
+        let record = json!({"schema":1,"kind":"layout","id":"sidebars","data":good});
+        crate::records::validate(&path, &serde_json::to_vec(&record).unwrap()).unwrap();
+        for invalid in [199.0, 521.0, -1.0] {
+            let mut data = good.clone();
+            data["workspaceWidth"] = json!(invalid);
+            assert!(validate("layout", &data).is_err());
+        }
+        let mut bad = good;
+        bad["windowPath"] = json!("private-device-path");
+        assert!(validate("layout", &bad).is_err());
+        assert!(crate::records::path_for("layout", "other").is_err());
+    }
+    #[test]
     fn portable_preferences_reject_unowned_nested_fields_and_invalid_values() {
         let theme = json!({"themeId":"dark","fontEditorSize":18,"fontEditorFamily":"system-ui","lineHeight":1.7,"codeBlockTheme":"auto","headings":{"custom":false,"family":"inherit","levels":([32,28,24,21,18,16].map(|size|json!({"size":size,"weight":700})))}});
         validate("theme_settings", &theme).unwrap();

frontend/src-tauri/src/records.rs

@@ -38,6 +38,7 @@ pub fn path_for(kind: &str, id: &str) -> Result<String> {
         ("theme_settings", "appearance") => {
             Ok("opennexus-records/v1/theme-settings/appearance.json".into())
         }
+        ("layout", "sidebars") => Ok("opennexus-records/v1/layout/sidebars.json".into()),
         ("preferences", "editor") => Ok("opennexus-records/v1/preferences/editor.json".into()),
         _ => Err(HostError::new("RECORD_ID_INVALID")),
     }
@@ -50,6 +51,7 @@ pub fn allowed(path_value: &str) -> bool {
         path_value,
         "opennexus-records/v1/theme-settings/appearance.json"
             | "opennexus-records/v1/preferences/editor.json"
+            | "opennexus-records/v1/layout/sidebars.json"
     ) {
         return true;
     }