D1 Part 3 leftovers: remove 8 residual emoji + Python emoji gate

- The D0 grep gate false-negatived multibyte emoji on Windows (its zero
  was wrong). scripts/emoji_gate.py scans by Unicode codepoint; it found
  8 survivors: backups.html (📁→file-text icon, 🔄 restore-info text),
  debug.html (🔄→'fut', 🔒→'titkosított'), deploy.html (📦→upload icon,
  ★ default-marker → '(alapértelmezett)'), storage.html (📦→upload icon,
  📦 in the migrate-target option → plain text). All → sprite icons or
  plain words.
- Gates: scripts/emoji_gate.py = 0; new Go TestNoEmojiInTemplates
  codepoint scan keeps it enforced (allowlist: ✓✗✔✘•●○■▶ monochrome
  text marks). go build/vet/test ./... green (18 pkgs).

controller/internal/web/templates/debug.html

@@ -362,7 +362,7 @@ function renderDiagnostic(d) {
         html += '<h4 style="margin-top:.75rem">Ütemező</h4><table class="info-table debug-table"><tr><th>Név</th><th>Típus</th><th>Utolsó futás</th><th>Fut</th></tr>';
         d.scheduler.forEach(function(j) {
             var type = j.type === 'daily' ? j.schedule : (j.interval || '-');
-            html += '<tr><td>' + j.name + '</td><td>' + type + '</td><td>' + (j.last_run ? fmtTime(j.last_run) : '-') + '</td><td>' + (j.running ? '🔄' : '-') + '</td></tr>';
+            html += '<tr><td>' + j.name + '</td><td>' + type + '</td><td>' + (j.last_run ? fmtTime(j.last_run) : '-') + '</td><td>' + (j.running ? 'fut' : '-') + '</td></tr>';
         });
         html += '</table>';
     }
@@ -835,7 +835,7 @@ function renderAppBundles(bundles) {
         html += '<td>' + (b.exported_at || '-') + '</td>';
         html += '<td>' + (b.size_human || '-') + '</td>';
         html += '<td>' + escapeHtml(b.drive_label || b.drive_path) + '</td>';
-        html += '<td>' + (b.encrypted ? '🔒' : '-') + '</td>';
+        html += '<td>' + (b.encrypted ? 'titkosított' : '-') + '</td>';
         html += '<td>' + (b.has_db ? 'igen' : '-') + '</td>';
         html += '<td>' + (b.needs_hdd ? 'igen' : '-') + '</td>';
         html += '<td class="mono" style="font-size:.7rem;max-width:200px;overflow:hidden;text-overflow:ellipsis">' + escapeHtml(b.path) + '</td>';