settings: relabel dry-run, harder PM block, rework users page

- Bewerbungen chip "Trockenmodus" → "nicht abgeschickt" (list + detail view)
- Profile form: add an off-screen honeypot (username + password) so Chrome's
  autofill burns its fill on those instead of the real E-Mail field; switch
  the visible E-Mail and Immomio-Email to type=text + inputmode=email so the
  browser heuristic no longer tags them as login emails
- Users page: create-form sits on top in its own card (3-column grid with
  Administrator checkbox inline); full-width list below with Administrator
  chip, aktiv/deaktiviert chip, "du" marker for the current user, plus
  disable/activate and a new red "löschen" button (confirm prompt) wired to
  new POST /actions/users/delete which cascades through the user's data

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

web/templates/bewerbungen.html

@@ -15,7 +15,7 @@
                 <span class="chip chip-info">{% if a.triggered_by == 'auto' %}automatisch{% else %}manuell{% endif %}</span>
                 {% if a.provider %}<span class="chip chip-info">{{ a.provider }}</span>{% endif %}
                 {% if a.submit_forms_used %}<span class="chip chip-warn">echt gesendet</span>
-                {% else %}<span class="chip chip-info">Trockenmodus</span>{% endif %}
+                {% else %}<span class="chip chip-info">nicht abgeschickt</span>{% endif %}
                 <span class="text-slate-500 text-xs ml-auto"
                       title="{{ a.started_at|de_dt }}">{{ a.started_at|de_dt }}</span>
             </div>