refactor: complete v0.8 core architecture

tests/admin_user_management_tests.rs

@@ -33,8 +33,6 @@ fn build_state(config: Config) -> (Db, AppState) {
     let (queue, _) = AnalyticsQueue::new(db.clone(), 1000, rx);
     let state = AppState {
         admin_db: db.admin.clone(),
-        content_db: db.content.clone(),
-        analytics_db: db.analytics.clone(),
         system_db: db.system.clone(),
         users_db: db.users.clone(),
         user_dbs: std::sync::Arc::new(std::sync::Mutex::new(HashMap::new())),