feat(i8-i9): webhook DEAD replay, read-only delivery status, and callback UI

I8: platform proxies replay to webhook; webhook ops token filter and internal
replay endpoint; delivery service supports read/replay flows.

I9: platform GET callback webhook delivery status by inbox id; UI shows
read-only status block and handles load errors without blocking the page.

Also refresh OpenAPI, Runbook notes, test fixtures and YAML; fix Vite dev
axios baseURL so /api uses proxy; improve login error messaging.

Made-with: Cursor

web/delivery-platform-ui/src/api/platform.js

@@ -244,6 +244,22 @@ export function patchCallbackInboxLink(id, body) {
   return axios.patch(`/api/v1/callback-inbox/${id}/link`, body);
 }
 
+/**
+ * I8：将 Webhook 侧 DEAD 出库按收据 ID 重新入队（需平台配置 LICENSE_WEBHOOK_*）。
+ * @param {string | number} id — callback inbox id
+ */
+export function replayCallbackWebhookDelivery(id) {
+  return axios.post(`/api/v1/callback-inbox/${id}/replay-webhook-delivery`);
+}
+
+/**
+ * I9：只读查询 Webhook 侧平台投递行状态（需 LICENSE_WEBHOOK_*）。
+ * @param {string | number} id — callback inbox id
+ */
+export function getCallbackWebhookDelivery(id) {
+  return axios.get(`/api/v1/callback-inbox/${id}/webhook-delivery`);
+}
+
 /**
  * @param {{ page?: number, size?: number }} params
  */