feat(sync): round trip cloud snapshots

crates/ely_domain/src/appearance.rs

@@ -111,19 +111,20 @@ mod tests {
     }
 
     #[test]
-    fn json_round_trip_preserves_kebab_case_variants() {
+    fn json_round_trip_preserves_kebab_case_variants() -> Result<(), serde_json::Error> {
         let mut settings = AppearanceSettings::default();
         settings.set_wallpaper(WallpaperTheme::Mint);
         settings.set_theme_mode(ThemeMode::Light);
         settings.set_reduce_motion(true);
         settings.set_translucency_pct(60);
 
-        let json = serde_json::to_string(&settings).unwrap();
+        let json = serde_json::to_string(&settings)?;
         assert!(json.contains("\"wallpaper\":\"mint\""));
         assert!(json.contains("\"theme_mode\":\"light\""));
         assert!(json.contains("\"translucency_pct\":60"));
 
-        let restored: AppearanceSettings = serde_json::from_str(&json).unwrap();
+        let restored: AppearanceSettings = serde_json::from_str(&json)?;
         assert_eq!(restored, settings);
+        Ok(())
     }
 }

crates/ely_domain/src/bookmark.rs

@@ -42,6 +42,32 @@ impl BookmarkEntry {
         })
     }
 
+    pub fn restore(
+        id: BookmarkId,
+        profile_id: ProfileId,
+        space_id: SpaceId,
+        collection_name: impl Into<String>,
+        title: impl Into<String>,
+        url: UrlText,
+        added_at: SystemTime,
+    ) -> Result<Self, DomainError> {
+        let collection_name = non_empty_text("bookmark collection", collection_name.into())?;
+        let title = non_empty_text("bookmark title", title.into())?;
+
+        Ok(Self {
+            id,
+            profile_id,
+            space_id,
+            collection_name,
+            title,
+            url,
+            tags: Vec::new(),
+            note: None,
+            thumbnail_key: None,
+            added_at,
+        })
+    }
+
     #[must_use]
     pub fn id(&self) -> &BookmarkId {
         &self.id