✨ feat(fleetledger): add initial implementation of FleetLedger app

- introduce Dockerfile for Python environment setup
- create FastAPI app with authentication and user management
- implement server management features with CRUD operations
- add PWA support with service worker and manifest
- set up initial templates for UI components

📝 docs(fleetledger): add README for FleetLedger application

- describe app features and functionalities
- provide security notes and quick start guide

📦 build(fleetledger): configure Docker and docker-compose setup

- define Dockerfile for application container
- create docker-compose.yml for service orchestration
- specify environment variables and volumes for persistence

fleetledger/app/templates/users_list.html

@@ -0,0 +1,68 @@
+{% extends "base.html" %}
+{% block content %}
+<div class="space-y-4">
+  <div class="flex items-center justify-between">
+    <div>
+      <h1 class="text-lg font-semibold tracking-tight">Benutzerverwaltung</h1>
+      <p class="text-xs text-slate-400">
+        Admins können Benutzer aktivieren/deaktivieren. Der eigene Account kann nicht deaktiviert werden.
+      </p>
+    </div>
+  </div>
+
+  <div class="overflow-hidden rounded-xl border border-slate-800 bg-slate-900/60">
+    <table class="min-w-full text-sm">
+      <thead class="bg-slate-900/80 text-xs uppercase tracking-wide text-slate-400">
+        <tr>
+          <th class="px-3 py-2 text-left">Benutzername</th>
+          <th class="px-3 py-2 text-left">E-Mail</th>
+          <th class="px-3 py-2 text-left">Rolle</th>
+          <th class="px-3 py-2 text-left">Status</th>
+          <th class="px-3 py-2 text-right">Aktion</th>
+        </tr>
+      </thead>
+      <tbody>
+        {% for u in users %}
+        <tr class="border-t border-slate-800/80 hover:bg-slate-800/50">
+          <td class="px-3 py-2">
+            <span class="font-medium text-slate-100">{{ u.username }}</span>
+          </td>
+          <td class="px-3 py-2 text-slate-200">
+            {% if u.email %}{{ u.email }}{% else %}<span class="text-slate-500">–</span>{% endif %}
+          </td>
+          <td class="px-3 py-2 text-slate-200">
+            {% if u.is_admin %}Admin{% else %}User{% endif %}
+          </td>
+          <td class="px-3 py-2 text-slate-200">
+            {% if u.is_active %}
+              <span class="inline-flex rounded-full bg-emerald-500/10 px-2 py-0.5 text-[11px] text-emerald-200 border border-emerald-500/50">
+                aktiv
+              </span>
+            {% else %}
+              <span class="inline-flex rounded-full bg-slate-800 px-2 py-0.5 text-[11px] text-slate-300 border border-slate-600">
+                deaktiviert
+              </span>
+            {% endif %}
+          </td>
+          <td class="px-3 py-2 text-right">
+            {% if u.id != current_user.id %}
+            <form method="post" action="/users/{{ u.id }}/toggle-active">
+              <input type="hidden" name="csrf_token" value="{{ csrf_token }}" />
+              <button
+                type="submit"
+                class="rounded-lg border border-slate-700 px-3 py-1 text-xs text-slate-200 hover:border-slate-500 hover:text-white"
+              >
+                {% if u.is_active %}Deaktivieren{% else %}Aktivieren{% endif %}
+              </button>
+            </form>
+            {% else %}
+            <span class="text-[11px] text-slate-500">Eigener Account</span>
+            {% endif %}
+          </td>
+        </tr>
+        {% endfor %}
+      </tbody>
+    </table>
+  </div>
+</div>
+{% endblock %}