feat(ui): mobile mesh tabs, AIUI-style audio player, cloud grid + map fixes

UI (this session):
- Global audio player now scales the whole interface into the space above it
  on desktop (sidebar + main) and docks directly above the tab bar on mobile;
  it stays visible while navigating.
- Mesh mobile redesign: floating Chat / BTC / Dead Man / AI / Map tab strip
  with a single fixed, internally-scrolling pane (page no longer scrolls);
  tabs hide while a conversation is open; floating back button; collapsible
  Device panel (starts collapsed); keyboard-aware conversation sizing via
  VisualViewport so the chat sits just above the keyboard.
- Cloud file grid: uniform 4/3 card heights (folders + images match).
- Swipe left/right switches tabs on the Apps and Web5 screens.
- Map tool fills its pane (no bottom gap); fix skewed Share Location toggle
  on mobile (global min-height rule was deforming the switch).
- Trim redundant helper copy from the mesh AI tab.

Also bundles pre-existing in-progress work that was already in the tree:
mesh listener/session + wallet + container + bitcoin-status backend changes,
docker UI updates, and assorted other UI tweaks.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

neode-ui/src/composables/useControllerNav.ts

@@ -613,9 +613,15 @@ export function useControllerNav(containerRef?: { value: HTMLElement | null }) {
   // ─── Scroll Support ────────────────────────────────────────
 
   function handleWheel(e: WheelEvent) {
-    const active = document.activeElement as HTMLElement | null
-    if (!active) return
-    let p = active.parentElement
+    // Scroll the container UNDER THE POINTER, not the focused element. Real
+    // wheel events always target the element beneath the cursor, so walking up
+    // from e.target matches native behaviour. Using document.activeElement here
+    // caused the wheel to scroll a previously-clicked container (e.g. the mesh
+    // peer list, still focused after a click) instead of the panel actually
+    // being hovered — producing a double-scroll where both moved at once.
+    const start = (e.target as HTMLElement | null) ?? (document.activeElement as HTMLElement | null)
+    if (!start) return
+    let p: HTMLElement | null = start
     while (p) {
       const style = getComputedStyle(p)
       if ((style.overflowY === 'auto' || style.overflowY === 'scroll') && p.scrollHeight > p.clientHeight) {