fix(admin): 补齐 key 自动获取模型的即时刷新场景

- 新增 key 且开启自动获取时立即抓取并写回 allowed_models
- 自动获取已开启时修改包含/排除规则后立即刷新 allowed_models
- 补充创建与过滤规则变更场景的控制层回归测试

apps/aether-gateway/src/handlers/admin/provider/endpoint_keys/mutations/create.rs

@@ -1,7 +1,7 @@
 use crate::handlers::admin::provider::shared::paths::admin_provider_id_for_keys;
 use crate::handlers::admin::provider::shared::payloads::AdminProviderKeyCreateRequest;
 use crate::handlers::admin::request::{AdminAppState, AdminRequestContext};
-use crate::GatewayError;
+use crate::{model_fetch::perform_model_fetch_for_key, GatewayError};
 use axum::{
     body::{Body, Bytes},
     http,
@@ -63,6 +63,32 @@ pub(super) async fn maybe_handle(
     let Some(created) = state.create_provider_catalog_key(&record).await? else {
         return Ok(None);
     };
+    let key_id = created.id.clone();
+    let created = if created.auto_fetch_models {
+        let summary =
+            perform_model_fetch_for_key(state.as_ref(), &provider.id, &created.id).await?;
+        if summary.succeeded == 0 {
+            let detail = state
+                .read_provider_catalog_keys_by_ids(std::slice::from_ref(&key_id))
+                .await?
+                .into_iter()
+                .next()
+                .and_then(|key| key.last_models_fetch_error)
+                .unwrap_or_else(|| "未获取到可用上游模型".to_string());
+            return Err(GatewayError::Internal(format!(
+                "开启自动获取模型后同步上游模型失败: {detail}"
+            )));
+        }
+
+        state
+            .read_provider_catalog_keys_by_ids(std::slice::from_ref(&key_id))
+            .await?
+            .into_iter()
+            .next()
+            .unwrap_or(created)
+    } else {
+        created
+    };
     let now_unix_secs = SystemTime::now()
         .duration_since(UNIX_EPOCH)
         .ok()

apps/aether-gateway/src/handlers/admin/provider/endpoint_keys/mutations/update.rs

@@ -81,8 +81,12 @@ pub(super) async fn maybe_handle(
     let Some(updated) = state.update_provider_catalog_key(&updated_record).await? else {
         return Ok(None);
     };
-    let should_overwrite_allowed_models_immediately =
-        !existing_key.auto_fetch_models && updated.auto_fetch_models;
+    let auto_fetch_filters_changed = existing_key.model_include_patterns
+        != updated.model_include_patterns
+        || existing_key.model_exclude_patterns != updated.model_exclude_patterns;
+    // 自动获取开启后，调整过滤规则也要立即刷新 allowed_models。
+    let should_overwrite_allowed_models_immediately = updated.auto_fetch_models
+        && (!existing_key.auto_fetch_models || auto_fetch_filters_changed);
     let updated = if should_overwrite_allowed_models_immediately {
         let summary =
             perform_model_fetch_for_key(state.as_ref(), &provider.id, &updated.id).await?;