fix(newos4): dashboard shows the real world model and stops dying after 10 s (v4.6.51)

Two defects, both verified live before/after:

1. The World Model panel always said "Not synthesized yet". The page had a
   renderer for data.worldModel and _collectDashboardData() never set it -- the
   model was right there in WorldModelModule._model. Now collected and mapped to
   the renderer's exact keys (model has modules.loaded/skills.count/memory.nodes,
   the page reads modules/skills/memoryNodes), plus changesSinceLastSnapshot and
   the recent-error sample, with an honest "not synthesized" fallback.

2. The page discarded any payload older than 10 s and its own 5 s auto-refresh
   then showed "Cannot connect to newOS4". Stale payloads are now rendered with
   their age ("Data as of 1:20:14 AM - 3m ago"), labelled amber past 5 min.

Also: the Refresh button wrote a localStorage key nobody read -> the terminal now
listens for it and re-collects (page says "No terminal tab answered" when no
terminal tab is open); storage events repaint instantly; the dead /api/dashboard
fetch (404 on all three paths, 5 s stall) is gone; `dashboard --watch` / `--stop`
re-collects every 5 s; header says the data is this browser's instance.

Verified v4.6.51: panel rows "Synthesized 34s ago / v4.6.51 / 46-22 / 136-3 /
1 nodes 0 edges / OK / none recorded"; 130 s-old payload still renders with
"- 3m ago" and no banner (previously "Cannot connect"); storage event moves the
footer 13s -> 0s; watch timer advances the payload, --stop clears it; mobile
360/390 px all OK; 0 console errors.

1 files changed, 31 insertions, 11 deletions

diff --git a/modules/core/terminal.js b/modules/core/terminal.js
index 425c5d6..c586538 100644
--- a/modules/core/terminal.js
+++ b/modules/core/terminal.js
@@ -479,6 +479,16 @@
                         this.hideAutocomplete();
                     }
                 });
+                // 2026-10-22: dashboard.html wrote this key on ⟳ Refresh and nothing listened.
+                window.addEventListener('storage', function (ev) {
+                    if (ev.key !== 'webx11_dashboard_data_request') return;
+                    const aiMod = this.moduleManager && this.moduleManager.modules
+                        ? this.moduleManager.modules.WebX11AIAssistantModule : null;
+                    if (aiMod && typeof aiMod._collectDashboardData === 'function') {
+                        aiMod._collectDashboardData();
+                    }
+                }.bind(this));
+
                 window.addEventListener('online', () => this.updateNetworkStatus());
                 window.addEventListener('offline', () => this.updateNetworkStatus());
                 document.getElementById('file-upload-input').addEventListener('change', (e) => {
@@ -1575,18 +1585,28 @@
                 if (cmd === 'smart-prompt') { const val = args[0] && args[0] === 'off' ? 'off' : 'on'; localStorage.setItem('webx11_smart_prompt', val); this.print('Smart prompt ' + val, 'success'); this.updatePrompt(); return; }
                 if (cmd === 'mem') { this.printMemoryStats(); return; }
                 if (cmd === 'dashboard') {
-                    // Collect dashboard data and open the dashboard page
-                    const aiMod = this.moduleManager?.modules?.WebX11AIAssistantModule;
-                    if (aiMod && typeof aiMod._collectDashboardData === 'function') {
-                        aiMod._collectDashboardData().then(function() {
-                            this.print('📊 Dashboard data collected — opening dashboard...', 'success');
-                            window.open('/spaces/newos4/downloads/dashboard.html', 'newOS4 Dashboard', 'width=1200,height=800');
-                        }.bind(this));
-                    } else {
-                        // Fallback: just open the page (it will try localStorage)
-                        this.print('📊 Opening dashboard...', 'info');
-                        window.open('/spaces/newos4/downloads/dashboard.html', 'newOS4 Dashboard', 'width=1200,height=800');
+                    const aiMod = this.moduleManager && this.moduleManager.modules
+                        ? this.moduleManager.modules.WebX11AIAssistantModule : null;
+                    const collect = function () {
+                        if (aiMod && typeof aiMod._collectDashboardData === 'function') return aiMod._collectDashboardData();
+                        return Promise.resolve(null);
+                    };
+                    if (args.indexOf('--stop') !== -1) {
+                        if (this._dashTimer) { clearInterval(this._dashTimer); this._dashTimer = null; this.print('📊 Dashboard watch stopped', 'info'); }
+                        else this.print('📊 Dashboard watch is not running', 'warning');
+                        return;
                     }
+                    if (args.indexOf('--watch') !== -1) {
+                        if (this._dashTimer) clearInterval(this._dashTimer);
+                        collect();
+                        this._dashTimer = setInterval(collect, 5000);
+                        this.print('📊 Dashboard watch on (5s) — open the dashboard tab; `dashboard --stop` to stop', 'success');
+                        return;
+                    }
+                    collect().then(function () {
+                        this.print('📊 Dashboard data collected — opening dashboard...', 'success');
+                        window.open('/spaces/newos4/downloads/dashboard.html', 'newOS4 Dashboard', 'width=1200,height=800');
+                    }.bind(this));
                     return;
                 }
                 if (cmd === 'config') {