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/uno.config.ts

@@ -0,0 +1,25 @@
+import { defineConfig, presetAttributify, presetWind3 } from "unocss"
+
+export default defineConfig({
+  // 预设
+  presets: [
+    // 属性化模式 & 无值的属性模式
+    presetAttributify({
+      prefix: "un-",
+      prefixedOnly: false
+    }),
+    // 默认预设
+    presetWind3({
+      important: "#app"
+    })
+  ],
+  // 自定义规则
+  rules: [],
+  // 自定义快捷方式
+  shortcuts: {
+    "wh-full": "w-full h-full",
+    "flex-center": "flex justify-center items-center",
+    "flex-x-center": "flex justify-center",
+    "flex-y-center": "flex items-center"
+  }
+})