- feat(types): add Provider.meta and ProviderMeta (snake_case) with custom_endpoints map

- feat(provider-form): persist custom endpoints on provider create by merging EndpointSpeedTest’s custom URLs into meta.custom_endpoints on submit

- feat(endpoint-speed-test): add onCustomEndpointsChange callback emitting normalized custom URLs; wire it for both Claude/Codex modals

- fix(api): send alias param names (app/appType/app_type and provider_id/providerId) in Tauri invokes to avoid “missing providerId” with older backends

- storage: custom endpoints are stored in ~/.cc-switch/config.json under providers[<id>].meta.custom_endpoints (not in settings.json)

- behavior: edit flow remains immediate writes; create flow now writes once via addProvider, removing the providerId dependency during creation

src-tauri/src/provider.rs

@@ -19,6 +19,9 @@ pub struct Provider {
     #[serde(skip_serializing_if = "Option::is_none")]
     #[serde(rename = "createdAt")]
     pub created_at: Option<i64>,
+    /// 供应商元数据（不写入 live 配置，仅存于 ~/.cc-switch/config.json）
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub meta: Option<ProviderMeta>,
 }
 
 impl Provider {
@@ -36,6 +39,7 @@ impl Provider {
             website_url,
             category: None,
             created_at: None,
+            meta: None,
         }
     }
 }
@@ -56,6 +60,14 @@ impl Default for ProviderManager {
     }
 }
 
+/// 供应商元数据
+#[derive(Debug, Clone, Serialize, Deserialize, Default)]
+pub struct ProviderMeta {
+    /// 自定义端点列表（按 URL 去重存储）
+    #[serde(default, skip_serializing_if = "HashMap::is_empty")]
+    pub custom_endpoints: HashMap<String, crate::settings::CustomEndpoint>,
+}
+
 impl ProviderManager {
     /// 获取所有供应商
     pub fn get_all_providers(&self) -> &HashMap<String, Provider> {