refactor: remove SocialQueryPort — replaced by SocialQuery + FederationAdminQuery

-319 lines. Legacy SocialQueryPort trait, NoopSocialQueryPort,
PanicSocialQueryPort all deleted. Federation repos now implement
FederationAdminQuery (single method). get_users uses FederationAdminQuery.
All other consumers use unified SocialQuery.

crates/application/src/diary/tests/get_activity_feed.rs

@@ -116,11 +116,6 @@ impl domain::ports::SocialQuery for FakeSocialWithFollowing {
     ) -> Result<Vec<String>, DomainError> {
         Ok(self.0.clone())
     }
-    async fn list_all_followed_remote_actors(
-        &self,
-    ) -> Result<Vec<domain::models::RemoteActorInfo>, DomainError> {
-        Ok(vec![])
-    }
 }
 
 #[tokio::test]

crates/application/src/test_helpers.rs

@@ -2,7 +2,7 @@ use std::sync::Arc;
 
 use domain::testing::{
     InMemoryGoalRepository, InMemorySocialRepository, InMemoryWrapUpRepository,
-    InMemoryWrapUpStatsQuery, NoopSocialQueryPort,
+    InMemoryWrapUpStatsQuery, NoopFederationAdminQuery,
 };
 use domain::{
     ports::{
@@ -75,7 +75,7 @@ pub struct TestContextBuilder {
     pub review_logger: Arc<dyn ReviewLogger>,
     pub social_command: Arc<dyn domain::ports::SocialCommand>,
     pub social_query_unified: Arc<dyn domain::ports::SocialQuery>,
-    pub social_query: Arc<dyn domain::ports::SocialQueryPort>,
+    pub federation_admin: Arc<dyn domain::ports::FederationAdminQuery>,
     pub refresh_session_repo: Arc<dyn RefreshSessionRepository>,
     pub config: AppConfig,
 }
@@ -127,7 +127,7 @@ impl TestContextBuilder {
             review_logger: Arc::new(NoopReviewLogger),
             social_command: Arc::clone(&social) as _,
             social_query_unified: Arc::clone(&social) as _,
-            social_query: Arc::new(NoopSocialQueryPort),
+            federation_admin: Arc::new(NoopFederationAdminQuery),
             refresh_session_repo: InMemoryRefreshSessionRepository::new(),
             config: AppConfig {
                 allow_registration: true,
@@ -273,11 +273,6 @@ impl TestContextBuilder {
         self
     }
 
-    pub fn with_social_query(mut self, r: Arc<dyn domain::ports::SocialQueryPort>) -> Self {
-        self.social_query = r;
-        self
-    }
-
     pub fn with_wrapup_repo(mut self, r: Arc<dyn WrapUpRepository>) -> Self {
         self.wrapup_repo = r;
         self

crates/application/src/users/deps.rs

@@ -1,7 +1,7 @@
 use std::sync::Arc;
 
 use domain::ports::{
-    DiaryQuery, EventPublisher, ObjectStorage, SocialQuery, SocialQueryPort, StatsRepository,
+    DiaryQuery, EventPublisher, FederationAdminQuery, ObjectStorage, SocialQuery, StatsRepository,
     UserRepository,
 };
 
@@ -13,7 +13,7 @@ pub struct GetProfileDeps {
 
 pub struct GetUsersListDeps {
     pub user: Arc<dyn UserRepository>,
-    pub social_query_legacy: Arc<dyn SocialQueryPort>,
+    pub federation_admin: Arc<dyn FederationAdminQuery>,
 }
 
 pub struct UpdateProfileDeps {

crates/application/src/users/get_users.rs

@@ -15,7 +15,7 @@ pub async fn execute(
 ) -> Result<UsersListData, DomainError> {
     let (users_result, actors_result) = tokio::join!(
         deps.user.list_with_stats(),
-        deps.social_query_legacy.list_all_followed_remote_actors()
+        deps.federation_admin.list_all_followed_remote_actors()
     );
 
     Ok(UsersListData {