Initial AlphaPulse implementation: news crawler and Binance klines

- Backend (FastAPI, SQLAlchemy 2, Alembic): single-admin cookie auth,
  news/crawler/market APIs with SSE and WebSocket streaming
- Crawler (Scrapy + Scrapy-Redis): wscn_news, wscn_live, cls_depth,
  cls_telegraph spiders, idempotent upserts with revisions, raw response
  archiving, per-source subprocess supervision, restart and backoff
- Market worker: full-history Binance spot/USD-M kline backfill,
  realtime WS stream, hourly and on-reconnect catch-up
- Frontend (Vue 3, Element Plus, UnoCSS, KLineChart): news feed,
  crawler console with live logs, Binance-style chart page
- Deploy: docker compose, nginx site, migrate and daily backup scripts

web/src/http/index.ts

@@ -0,0 +1,21 @@
+import axios from "axios"
+import { ElMessage } from "element-plus"
+import { router } from "@/router"
+
+// 鉴权靠 httpOnly cookie，同源请求自动携带
+export const http = axios.create({ baseURL: "/api", timeout: 15000 })
+
+http.interceptors.response.use(
+  response => response.data,
+  (error) => {
+    const url = error.config?.url
+    // /auth/me 的 401 由路由守卫处理；其余接口 401 说明登录过期
+    if (error.response?.status === 401 && url !== "/auth/login") {
+      if (url !== "/auth/me")
+        router.replace({ name: "login", query: { redirect: router.currentRoute.value.fullPath } })
+    } else {
+      ElMessage.error(error.response?.data?.detail ?? error.message)
+    }
+    return Promise.reject(error)
+  }
+)