Fix: scheduler re-starts session after 17:00; nginx IPv6; button style

- Scheduler: change elif condition to start_t <= now < end_t so the
session is never auto-started when current time is past end time
(previously: end at 17:00, then next tick 17:00>=10:00 restarts it)
- nginx: replace localhost with 127.0.0.1 to avoid IPv6 connection
refused errors on HuggingFace (localhost resolves to ::1 there)
- AI panel: indigo top border + shadow to make it visually distinct;
button enlarged and labelled with ✨ for better discoverability

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

dashboard/dashboard.py

@@ -389,7 +389,7 @@ def schedule_runner():
                     if now >= end_t and session_state["active"]:
                         print("[Scheduler] Auto end of day")
                         _do_session_end()
-                    elif now >= start_t and not session_state["active"]:
+                    elif start_t <= now < end_t and not session_state["active"]:
                         print("[Scheduler] Auto start of day")
                         _do_session_start()
         except Exception as e:

dashboard/templates/index.html

@@ -53,8 +53,9 @@
     .ai-panel {
       background: #fff;
       border-radius: 8px;
-      padding: 10px 14px;
-      box-shadow: 0 2px 4px rgba(0,0,0,0.1);
+      padding: 12px 16px;
+      box-shadow: 0 2px 6px rgba(92,107,192,0.18);
+      border-top: 3px solid #5c6bc0;
       margin-top: 20px;
     }
     .insight-card {
@@ -381,9 +382,9 @@
     <h2 style="margin:0 0 8px; font-size:15px; display:flex; align-items:center; gap:10px;">
       AI Analyst
       <button id="ai-generate-btn" onclick="triggerAIInsight()"
-              style="padding:3px 12px; background:#5c6bc0; color:#fff; border:none; border-radius:12px;
-                     font-size:11px; font-weight:bold; cursor:pointer;">
-        Generate Now
+              style="padding:5px 14px; background:#5c6bc0; color:#fff; border:none; border-radius:12px;
+                     font-size:12px; font-weight:bold; cursor:pointer; flex-shrink:0;">
+        ✨ Generate Now
       </button>
       <span id="ai-status" style="font-size:11px; color:#999; font-weight:normal;">waiting for first insight…</span>
     </h2>

nginx.conf

@@ -11,7 +11,7 @@ http {
 
         # SSE – disable buffering for the dashboard's /stream endpoint
         location /stream {
-            proxy_pass         http://localhost:5000/stream;
+            proxy_pass         http://127.0.0.1:5000/stream;
             proxy_set_header   Host $host;
             proxy_set_header   X-Real-IP $remote_addr;
             proxy_buffering    off;
@@ -22,7 +22,7 @@ http {
 
         # Frontend (order entry) – served under /frontend/
         location /frontend/ {
-            proxy_pass         http://localhost:5003/;
+            proxy_pass         http://127.0.0.1:5003/;
             proxy_set_header   Host $host;
             proxy_set_header   X-Real-IP $remote_addr;
             sub_filter         'href="/'    'href="/frontend/';
@@ -33,7 +33,7 @@ http {
 
         # FIX UI Client – served under /fix/
         location /fix/ {
-            proxy_pass         http://localhost:5002/;
+            proxy_pass         http://127.0.0.1:5002/;
             proxy_set_header   Host $host;
             proxy_set_header   X-Real-IP $remote_addr;
             # Rewrite absolute links generated by Flask url_for()
@@ -46,7 +46,7 @@ http {
 
         # Dashboard – everything else
         location / {
-            proxy_pass         http://localhost:5000;
+            proxy_pass         http://127.0.0.1:5000;
             proxy_set_header   Host $host;
             proxy_set_header   X-Real-IP $remote_addr;
             proxy_buffering    off;