fix: gamepad nav dead ends on Apps page, orange glass active sidebar style

- Nav-tab-active now uses orange glass (bg, border, glow, gradient)
- Sidebar focus-visible uses matching orange tint
- Enter on containers skips uninstall button, finds primary action
- Down/Right from grid edges falls back to all focusable elements
- Global fallback for standalone buttons in empty/error states
- Full gamepad nav map for all onboarding screens + login modes

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

neode-ui/src/composables/useControllerNav.ts

@@ -301,28 +301,38 @@ export function useControllerNav(containerRef?: { value: HTMLElement | null }) {
       e.preventDefault()
 
       if (isContainer(activeEl)) {
-        // Container has a primary action link (the > chevron)?
-        const primaryLink = activeEl.querySelector<HTMLElement>('a[href]')
+        // Prioritised action: install button
         if (activeEl.hasAttribute('data-controller-install')) {
           const btn = activeEl.querySelector<HTMLButtonElement>('[data-controller-install-btn]:not([disabled])')
           if (btn) { playNavSound('action'); btn.click(); return }
         }
+        // Prioritised action: launch button
         if (activeEl.hasAttribute('data-controller-launch')) {
           const btn = activeEl.querySelector<HTMLButtonElement>('[data-controller-launch-btn]:not([disabled])')
           if (btn) { playNavSound('action'); btn.click(); return }
         }
-        // Default: click the primary link to navigate to that section
+        // Primary link (e.g. dashboard cards with a[href])
+        const primaryLink = activeEl.querySelector<HTMLElement>('a[href]')
         if (primaryLink) {
           playNavSound('action')
           primaryLink.click()
           return
         }
-        // No primary link — drill into inner controls
+        // Fallback: first non-disabled action button (skip uninstall/delete buttons)
         const inner = getInnerFocusables(activeEl)
-        if (inner[0]) {
-          focusEl(inner[0], 'action')
+        const actionBtn = inner.find(el =>
+          (el.tagName === 'BUTTON' || el.getAttribute('role') === 'button') &&
+          !el.getAttribute('aria-label')?.toLowerCase().includes('uninstall') &&
+          !el.closest('[class*="absolute top"]')
+        ) ?? inner[0]
+        if (actionBtn) {
+          focusEl(actionBtn, 'action')
           return
         }
+        // Last resort: click the container itself (triggers goToApp on AppCard)
+        playNavSound('action')
+        activeEl.click()
+        return
       }
 
       // Regular element: click it
@@ -462,9 +472,36 @@ export function useControllerNav(containerRef?: { value: HTMLElement | null }) {
         return
       }
 
-      // At grid edges (down/right with no target): do nothing
+      // At grid edges: try all focusable elements in main zone as fallback
+      // (prevents dead ends when spatial nav between containers fails)
+      if (dir === 'down' || dir === 'right') {
+        const zone = document.querySelector('[data-controller-zone="main"]') as HTMLElement | null
+        if (zone) {
+          const allFocusable = getFocusableElements(zone)
+          const fallback = findNearestInDirection(activeEl, allFocusable, dir)
+          if (fallback) {
+            rememberFocus('main', fallback)
+            focusEl(fallback)
+          }
+        }
+      }
       return
     }
+
+    // ── FALLBACK: unhandled focusable element ───────────────
+    // Covers standalone buttons/links in empty/error states, modals, etc.
+    // that aren't inside a recognized zone or container.
+    if (dir === 'left') {
+      const sidebar = getSidebarElements()
+      const sidebarZone = document.querySelector('[data-controller-zone="sidebar"]')
+      const activeTab = sidebarZone?.querySelector<HTMLElement>('.nav-tab-active')
+      const target = activeTab ?? sidebar[0]
+      if (target) { rememberFocus('main', activeEl); focusEl(target) }
+    } else {
+      const all = getFocusableElements()
+      const next = findNearestInDirection(activeEl, all, dir)
+      if (next) focusEl(next)
+    }
   }
 
   // ─── Gamepad Detection ──────────────────────────────────────