Scaffold Symfony 8 app with Bootstrap/DataTables and Docker stack

- Symfony 8.1 webapp skeleton on PHP 8.5 (AssetMapper/importmap, no Node)
- Form-login gate: User entity, security.yaml, SecurityController,
  app:user:create command, initial migration (user + messenger_messages)
- Bootstrap 5 + DataTables layout (base/login/home templates); any
  table.datatable is auto-initialised
- trusted_proxies/headers wired for the shared Nginx Proxy Manager
- Docker (servers only): docker-compose.yml (php:8.5-fpm-alpine,
  nginx:1.30-alpine, mariadb:12.3; host ports 8085/3310; external
  docker_default network) + docker/{Dockerfile,php.ini,nginx,setup.sh,restart.sh}
- .env with CHANGEME placeholders (no secrets), .gitattributes enforces
  LF so the deploy scripts stay runnable on Linux

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

templates/home/index.html.twig

@@ -0,0 +1,39 @@
+{% extends 'base.html.twig' %}
+
+{% block title %}Overview · dmtools{% endblock %}
+
+{% block body %}
+    <div class="d-flex justify-content-between align-items-center mb-3">
+        <h1 class="h3 mb-0">Overview</h1>
+    </div>
+
+    <p class="text-body-secondary">
+        Starting point for the Monday-evening campaign tools. The table below is a
+        placeholder that shows the Bootstrap + DataTables layout wiring works
+        (search, sort, paging).
+    </p>
+
+    <div class="card shadow-sm">
+        <div class="card-body">
+            <table class="table table-striped table-hover align-middle datatable"
+                   data-datatable-options='{"order": [[0, "asc"]]}'>
+                <thead>
+                    <tr>
+                        <th scope="col">Name</th>
+                        <th scope="col">Type</th>
+                        <th scope="col">Location</th>
+                        <th scope="col">Notes</th>
+                    </tr>
+                </thead>
+                <tbody>
+                    <tr><td>Seraphina Vane</td><td>NPC</td><td>Blackreach</td><td>Owes the party a favour</td></tr>
+                    <tr><td>Goblin ambush</td><td>Encounter</td><td>Old Kings Road</td><td>CR 2, 6 goblins</td></tr>
+                    <tr><td>The Sunken Vault</td><td>Location</td><td>Lake Nydra</td><td>Water-breathing required</td></tr>
+                    <tr><td>Rusted Key</td><td>Item</td><td>Party inventory</td><td>Opens the vault antechamber</td></tr>
+                    <tr><td>Captain Dorae</td><td>NPC</td><td>Saltmarsh docks</td><td>Will smuggle cargo for coin</td></tr>
+                    <tr><td>Owlbear den</td><td>Encounter</td><td>Whisperwood</td><td>CR 3, mother + 2 cubs</td></tr>
+                </tbody>
+            </table>
+        </div>
+    </div>
+{% endblock %}