feat: 添加 Analytics 分析功能（行为追踪、错误码、协议更新）

backend/src/v1/analytics/web/index.html

@@ -204,6 +204,8 @@
     const dailyTable = document.getElementById("dailyTable");
 
     const AUTH_KEY = "analytics_logged_in";
+    const DATA_BASE_URL_KEY = "analytics_data_base_url";
+    const AUTH_TOKEN_KEY = "analytics_auth_token";
 
     function formatDate(date) {
       const y = date.getUTCFullYear();
@@ -240,8 +242,11 @@
     }
 
     async function fetchDayEvents(date) {
-      const res = await fetch(`/analytics-data/${date}.jsonl`, {
+      const dataBaseUrl = sessionStorage.getItem(DATA_BASE_URL_KEY) || "/api/v1/analytics/data";
+      const token = sessionStorage.getItem(AUTH_TOKEN_KEY);
+      const res = await fetch(`${dataBaseUrl}/${date}`, {
         method: "GET",
+        headers: token ? { Authorization: `Bearer ${token}` } : {},
       });
       if (res.status === 404) {
         return [];
@@ -397,7 +402,17 @@
       if (!res.ok) {
         throw new Error("密码错误");
       }
+      const payload = await res.json();
+      const dataBaseUrl = typeof payload.data_base_url === "string" && payload.data_base_url
+        ? payload.data_base_url
+        : "/api/v1/analytics/data";
+      const token = typeof payload.token === "string" ? payload.token : "";
+      if (!token) {
+        throw new Error("登录响应缺少 token");
+      }
       sessionStorage.setItem(AUTH_KEY, "1");
+      sessionStorage.setItem(DATA_BASE_URL_KEY, dataBaseUrl);
+      sessionStorage.setItem(AUTH_TOKEN_KEY, token);
     }
 
     function enterDashboard() {
@@ -407,6 +422,8 @@
 
     function exitDashboard() {
       sessionStorage.removeItem(AUTH_KEY);
+      sessionStorage.removeItem(DATA_BASE_URL_KEY);
+      sessionStorage.removeItem(AUTH_TOKEN_KEY);
       dashboard.classList.add("hidden");
       loginCard.classList.remove("hidden");
     }
@@ -436,6 +453,10 @@
       startDateInput.value = formatDate(start);
       endDateInput.value = formatDate(today);
       if (sessionStorage.getItem(AUTH_KEY) === "1") {
+        if (!sessionStorage.getItem(AUTH_TOKEN_KEY)) {
+          exitDashboard();
+          return;
+        }
         enterDashboard();
         loadData();
       }