fix(aiui): node-content surfaces stay open when the reply text infers no tabs

Reproduced live: 'show me paid for peer files' returned surfaces=1 with 3
purchased images over the bridge, then updatePanelFromText set panelOpen
from the REGEX-inferred tab list — a plain markdown list matches nothing,
so the panel closed and the user saw prose only. panelOpen now follows
orderedTabs (Archy tabs lead). Regression test pins the exact turn.

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

aiui/packages/app/src/composables/__tests__/useContentPanel.test.ts

@@ -109,6 +109,30 @@ describe('useContentPanel', () => {
       // is still a real answer from the node, distinct from "never asked".
       expect(panel.archyContentActive.value).toBe(true)
     })
+
+    // Regression (live on archi-dev-box 2026-08-07): "show me paid for peer
+    // files" — the turn's surface carried 3 purchased images, the reply text
+    // was a plain markdown list matching no extraction pattern, and
+    // updatePanelFromText then set panelOpen from the regex-only tab list,
+    // CLOSING the panel setArchyContent had just opened. The probe showed
+    // surfaces=1 arriving; the user saw only prose.
+    it('keeps the panel open on node content when the reply text infers no tabs', () => {
+      const img = { id: 'i1', title: 'signal-test.jpeg', url: '/content/abc', mimeType: 'image/jpeg' } as unknown as ImageItem
+      panel.setArchyContent({ images: [img] })
+      expect(panel.panelOpen.value).toBe(true)
+      expect(panel.activeTab.value).toBe('image')
+
+      // The turn's prose answer arrives after the surfaces and fires the
+      // text path: a bullet list with no tags, no links, no patterns.
+      panel.updatePanelFromText(
+        "You've purchased 4 items from peer nodes:\n\n- signal-test.jpeg (170 KB) — 100 sats\n- Photos/got it!.jpg (253 KB) — 100 sats\n\nThese are mostly photos.",
+        'show me paid for peer files',
+      )
+
+      expect(panel.panelOpen.value).toBe(true)
+      expect(panel.availableTabs.value[0]).toBe('image')
+      expect(panel.panelImages.value).toHaveLength(1)
+    })
   })
 
   it('openPlaceDetail and closePlaceDetail work', () => {

aiui/packages/app/src/composables/useContentPanel.ts

@@ -327,7 +327,12 @@ export function useContentPanel() {
     else if (hasNostr) panelTitle.value = 'Nostr'
     else panelTitle.value = 'Content'
 
-    panelOpen.value = tabs.length > 0
+    // Open from the ORDERED tab list (Archy tabs + inferred), not the
+    // regex-only `tabs`: a node-supplied grid whose reply text happens to
+    // match no extraction pattern (a plain markdown list of purchased
+    // files) used to CLOSE the panel setArchyContent had just opened —
+    // the probe showed surfaces=1 images=3 arriving and the user saw prose.
+    panelOpen.value = orderedTabs.length > 0
   }
 
   /**