Add instance data dashboard (default off).

Read-only overview of live orders, key monitors, and strategy; show options/hedge only when present. Toggle via system settings nav prefs.

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

lib/instance/instance_embed_lib.py

@@ -11,6 +11,7 @@ from flask import Flask, Response, jsonify, redirect, request, session
 from jinja2 import ChoiceLoader, FileSystemLoader
 
 EMBED_TABS: tuple[str, ...] = (
+    "dashboard",
     "key_monitor",
     "trade",
     "strategy",
@@ -28,6 +29,7 @@ EMBED_TABS: tuple[str, ...] = (
 PATH_TO_EMBED_TAB: dict[str, str] = {
     "/": "trade",
     "/trade": "trade",
+    "/dashboard": "dashboard",
     "/key_monitor": "key_monitor",
     "/strategy": "strategy",
     "/strategy/trend": "strategy",