sync gate_bot with gate as identical copy instance

Align gate_bot app, templates, and env template with gate while keeping bot identity (port 5002, hub key gate_bot).

Co-authored-by: Cursor <cursoragent@cursor.com>

manual_trading_hub/settings_store.py

@@ -48,7 +48,7 @@ DEFAULT_EXCHANGES = [
         "flask_url": "http://127.0.0.1:5002",
         "review_url": "http://127.0.0.1:5002/records",
         "enabled": True,
-        "capabilities": ["trend"],
+        "capabilities": ["key", "trend"],
     },
 ]