Fix dashboard error handling, settings billing route, update vision.md

- routes.py: return_exceptions=True on gather, log individual query failures
  with per-result defaults so one bad query doesn't blank the whole page
- settings.html: fix billing.portal → billing.manage (correct blueprint route)
- vision.md: update current state to February 2026, document shipped features

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

web/src/beanflows/dashboard/routes.py

@@ -7,7 +7,7 @@ import secrets
 from datetime import datetime
 from pathlib import Path
 
-from quart import Blueprint, flash, g, jsonify, redirect, render_template, request, url_for
+from quart import Blueprint, current_app, flash, g, jsonify, redirect, render_template, request, url_for
 
 from .. import analytics
 from ..auth.routes import login_required, update_user
@@ -113,8 +113,11 @@ async def index():
             analytics.get_cot_index_trend(analytics.COFFEE_CFTC_CODE, weeks=104),
             return_exceptions=True,
         )
+        defaults = [[], [], [], [], [], None, []]
         time_series, top_producers, stu_trend, balance, yoy, cot_latest, cot_trend = [
-            r if not isinstance(r, Exception) else (None if i == 5 else [])
+            r if not isinstance(r, Exception) else (
+                current_app.logger.warning("Analytics query %d failed: %s", i, r) or defaults[i]
+            )
             for i, r in enumerate(results)
         ]
     else:

web/src/beanflows/dashboard/templates/settings.html

@@ -52,7 +52,7 @@
 
     <div>
       {% if subscription %}
-      <form method="post" action="{{ url_for('billing.portal') }}" class="inline">
+      <form method="post" action="{{ url_for('billing.manage') }}" class="inline">
         <input type="hidden" name="csrf_token" value="{{ csrf_token() }}">
         <button type="submit" class="btn-secondary">Manage Subscription</button>
       </form>