feat: 扩展 Rust gateway 全功能模块，新增 billing/crypto/wallet crate 及完整数据层

- 新增 aether-billing、aether-crypto、aether-wallet 独立 crate
- aether-data 扩展 repository 层：announcements、auth_modules、billing、
  candidate_selection、gemini_file_mappings、global_models、management_tokens、
  oauth_providers、proxy_nodes、quota、users、wallet 等模块
- aether-gateway 新增 api/auth/billing/control/middleware/scheduler/usage/
  video_tasks/hooks/maintenance/model_fetch/provider_transport 等功能模块
- 重构 executor decision 和 gateway state 为模块目录结构
- 新增 gateway router、frontdoor 路由层及对应测试
- Python 侧 API 路由重构，新增 compat/support 模块
- 前端 Logo 组件更新及 Provider 管理页面调整

crates/aether-gateway/src/audit/http.rs

@@ -126,54 +126,6 @@ pub(crate) async fn get_decision_trace(
     }
 }
 
-pub(crate) async fn get_request_usage_audit(
-    State(state): State<AppState>,
-    Path(request_id): Path<String>,
-) -> Result<Json<crate::gateway::data::RequestUsageAudit>, axum::response::Response> {
-    let usage = state
-        .read_request_usage_audit(&request_id)
-        .await
-        .map_err(IntoResponse::into_response)?;
-
-    match usage {
-        Some(usage) => Ok(Json(usage)),
-        None => Err((
-            axum::http::StatusCode::NOT_FOUND,
-            Json(json!({
-                "error": {
-                    "message": "Request usage not found",
-                }
-            })),
-        )
-            .into_response()),
-    }
-}
-
-pub(crate) async fn get_request_audit_bundle(
-    State(state): State<AppState>,
-    Path(request_id): Path<String>,
-    Query(query): Query<GetRequestCandidateTraceQuery>,
-) -> Result<Json<crate::gateway::data::RequestAuditBundle>, axum::response::Response> {
-    let attempted_only = query.attempted_only.unwrap_or(false);
-    let bundle = state
-        .read_request_audit_bundle(&request_id, attempted_only, current_unix_secs())
-        .await
-        .map_err(IntoResponse::into_response)?;
-
-    match bundle {
-        Some(bundle) => Ok(Json(bundle)),
-        None => Err((
-            axum::http::StatusCode::NOT_FOUND,
-            Json(json!({
-                "error": {
-                    "message": "Request audit bundle not found",
-                }
-            })),
-        )
-            .into_response()),
-    }
-}
-
 pub(crate) async fn get_auth_api_key_snapshot(
     State(state): State<AppState>,
     Path((user_id, api_key_id)): Path<(String, String)>,

crates/aether-gateway/src/audit/mod.rs

@@ -3,8 +3,6 @@ mod shadow;
 
 pub(crate) use http::get_auth_api_key_snapshot;
 pub(crate) use http::get_decision_trace;
-pub(crate) use http::get_request_audit_bundle;
 pub(crate) use http::get_request_candidate_trace;
-pub(crate) use http::get_request_usage_audit;
 pub(crate) use http::list_recent_shadow_results;
 pub(crate) use shadow::record_shadow_result_non_blocking;

crates/aether-gateway/src/audit/shadow.rs

@@ -146,6 +146,8 @@ mod tests {
             auth_endpoint_signature: Some("openai:chat".to_string()),
             executor_candidate: true,
             auth_context: None,
+            admin_principal: None,
+            local_auth_rejection: None,
         }
     }