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

deploy/nginx/alpha.134333.xyz.conf

@@ -0,0 +1,31 @@
+# alpha.134333.xyz -> AlphaPulse web 容器（127.0.0.1:21030）
+
+server {
+  listen 80;
+  server_name alpha.134333.xyz;
+  return 308 https://alpha.134333.xyz$request_uri;
+}
+server {
+  listen 443 ssl;
+  http2 on;
+  server_name alpha.134333.xyz;
+
+  include /etc/nginx/snippets/ssl-134333.xyz.conf;
+  include /etc/nginx/snippets/no-spider.conf;
+  access_log /var/log/nginx/alpha.134333.xyz.log;
+  error_log /var/log/nginx/alpha.134333.xyz.error.log warn;
+
+  location / {
+    proxy_pass http://127.0.0.1:21030;
+    proxy_http_version 1.1;
+    # SSE 不缓冲；WebSocket 需要升级头
+    proxy_buffering off;
+    proxy_set_header Upgrade $http_upgrade;
+    proxy_set_header Connection $http_connection;
+    proxy_set_header Host $http_host;
+    proxy_set_header X-Forwarded-Proto $scheme;
+    proxy_set_header X-Real-IP $remote_addr;
+    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+    proxy_read_timeout 1h;
+  }
+}