fix: resolve all remaining audit failures across rust, svelte, and java

crates/shared/src/lib.rs

@@ -707,6 +707,12 @@ pub struct UserProfileView {
     pub featured_achievement: Option<Achievement>,
     pub achievements_count: usize,
     pub posts: Vec<UserPost>,
+    pub level_info: UserLevelInfo,
+    pub achievements: Vec<Achievement>,
+    pub badges: Vec<String>,
+    pub friends_count: i64,
+    pub created_at: String,
+    pub stats: Option<serde_json::Value>,
 }
 
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