feat: topbar quick capture, fix mobile bottom nav and more panel

- Add quick capture input to topbar (desktop: inline 250px, mobile: full-width
  with submit button) that POSTs to /capture/add with redirect back to current page
- Fix mobile bottom bar: 5 items (Dashboard, Focus, Tasks, Capture, More),
  nowrap/overflow:hidden to prevent multi-line wrapping
- Rebuild mobile More panel as 3-column grid overlay (z-index 998/999/1000 stack)
  with backdrop dismiss, 8 items: Calendar, Notes, Meetings, Decisions, Contacts,
  Processes, Weblinks, Admin
- Add file seed fixture and registry mapping to eliminate 4 test skips
- Add time_budgets form factory patterns to fix 2 test failures

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

static/app.js

@@ -174,7 +174,9 @@ function escHtml(s) {
 
 function toggleMobileMore() {
     const panel = document.getElementById('mobile-more-panel');
+    const btn = document.getElementById('mobile-more-btn');
     if (panel) panel.classList.toggle('open');
+    if (btn) btn.classList.toggle('active');
 }
 
 // ---- Timer Pill (topbar running timer) ----