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, 0 deletions

diff --git a/modules/core/module-aiassist.js b/modules/core/module-aiassist.js
index a8c0ae1..abbe9ce 100644
--- a/modules/core/module-aiassist.js
+++ b/modules/core/module-aiassist.js
@@ -4632,6 +4632,37 @@ buildSystemPrompt() {
                         predictorAccuracy: predictorAcc
                     };
 
+                    // 2026-10-22: the panel had a renderer and no collector, so it always said
+                    // "Not synthesized yet" while WorldModelModule._model was right there.
+                    // Map the model shape (modules.loaded, skills.count, files.total, memory.nodes…)
+                    // onto the keys the page reads (modules, skills, files, memoryNodes…).
+                    try {
+                        var wm = mm ? mm.modules['WorldModelModule'] : null;
+                        var wmModel = wm && wm._model;
+                        if (wmModel) {
+                            data.worldModel = {
+                                synthesized: wmModel.synthesized || null,
+                                version: wmModel.version || '?',
+                                modules: wmModel.modules ? wmModel.modules.loaded : null,
+                                skills: wmModel.skills ? wmModel.skills.count : null,
+                                files: wmModel.files ? wmModel.files.total : null,
+                                agents: wmModel.agents ? wmModel.agents.agents : null,
+                                memoryNodes: wmModel.memory ? wmModel.memory.nodes : null,
+                                memoryEdges: wmModel.memory ? wmModel.memory.edges : null,
+                                health: wmModel.system ? wmModel.system.health : null,
+                                activeProjects: ((wmModel.projects && wmModel.projects.activeProjects) || [])
+                                    .map(function (p) { return p.name + ' (' + p.accesses + 'x)'; }),
+                                recent: (wmModel.recent || []).slice(0, 5),
+                                changes: (typeof wm._diffSincePrev === 'function') ? wm._diffSincePrev() : [],
+                                errors: (typeof wm._errorSample === 'function') ? wm._errorSample() : []
+                            };
+                        } else {
+                            data.worldModel = { missing: true };
+                        }
+                    } catch (e) {
+                        data.worldModel = { missing: true, error: e.message };
+                    }
+
                     data.timestamp = Date.now();
 
                     // Write to localStorage for the dashboard HTML page to read