feat(openinsider): 新增 OpenInsider 內部人交易爬蟲，支援多標的與每日排程

- 新增 app/crawlers/openinsider.py，來源 http://openinsider.com/search?q={symbol}

- 支援多標的：以 SYMBOLS=PLTR,NVDA,... 同時追多檔（或使用 SYMBOL 單一）

- runner: 多實例排程與啟動；/check 會依序觸發全部爬蟲

- API: /info、/stats、/check、/notify_test 支援多爬蟲回應

- config/base: 新增 RUN_DAILY_AT 每日固定時間；未設定則用 CHECK_INTERVAL

- notifications: 新增 send_custom_email、send_text_webhook、send_text_discord

- README 與 .env.template 更新；.env 改為 CRAWLER_TYPE=openinsider

- 移除 quiver_insiders 爬蟲與相關設定

BREAKING CHANGE: 不再支援 CRAWLER_TYPE=quiver_insiders；請改用 openinsider。

app/runner.py

@@ -1,9 +1,13 @@
 from __future__ import annotations
 
+import os
 import threading
+import time
+import schedule
 
 from app.config import load_config, setup_logging
 from app.crawlers.barrons import BarronsCrawler
+from app.crawlers.openinsider import OpenInsiderCrawler
 from app.api.server import create_app
 
 
@@ -12,11 +16,21 @@ def start():
     config = load_config()
     logger = setup_logging(config.log_level, config.log_dir)
 
-    # Create crawler instance
-    crawler = BarronsCrawler(config, logger)
+    # Select crawler via env var
+    crawler_type = (os.getenv('CRAWLER_TYPE') or 'barrons').lower()
+    crawlers = []
+    if crawler_type in ('openinsider', 'open_insider'):
+        symbols_raw = os.getenv('SYMBOLS') or os.getenv('SYMBOL', 'PLTR')
+        symbols = [s.strip().upper() for s in symbols_raw.split(',') if s.strip()]
+        logger.info(f"使用 OpenInsider 內部人交易爬蟲，symbols={symbols}")
+        for sym in symbols:
+            crawlers.append(OpenInsiderCrawler(config, logger, symbol=sym))
+    else:
+        logger.info("使用 Barron's 股票推薦爬蟲")
+        crawlers.append(BarronsCrawler(config, logger))
 
     # Create and start API in background
-    app = create_app(crawler)
+    app = create_app(crawlers if len(crawlers) > 1 else crawlers[0])
 
     def run_api():
         app.run(host='0.0.0.0', port=8080, debug=False)
@@ -24,6 +38,29 @@ def start():
     flask_thread = threading.Thread(target=run_api, daemon=True)
     flask_thread.start()
 
-    # Run crawler loop (blocking)
-    crawler.run()
+    # Schedule checks for each crawler and run loop (blocking)
+    if getattr(config, 'run_daily_at', None):
+        for c in crawlers:
+            schedule.every().day.at(config.run_daily_at).do(c.run_check)
+        logger.info(f"🚀 多爬蟲已啟動，每天 {config.run_daily_at} 檢查一次：{[getattr(c, 'symbol', c.name) for c in crawlers]}")
+    else:
+        for c in crawlers:
+            schedule.every(config.check_interval).seconds.do(c.run_check)
+        logger.info(f"🚀 多爬蟲已啟動，每 {config.check_interval} 秒檢查一次：{[getattr(c, 'symbol', c.name) for c in crawlers]}")
 
+    # Initial run for each
+    for c in crawlers:
+        c.run_check()
+        # Mark first check done to respect ALWAYS_NOTIFY_ON_STARTUP logic afterwards
+        try:
+            c._first_check_done = True
+        except Exception:
+            pass
+
+    # Main loop
+    try:
+        while True:
+            schedule.run_pending()
+            time.sleep(1)
+    except KeyboardInterrupt:
+        logger.info("收到停止信號，正在關閉…")