feat: Evotor user lifecycle, RBAC, admin panel

- Receive Evotor webhooks: POST /user/create, /user/verify, /user/token
- Create users in pending status; match to existing users by email/phone
- Send invite link via Celery notification task; user sets password at /invite
- Abstract EmailProvider/SMSProvider with ConsoleEmailProvider default
- Role-based access control: role enum on users + roles/permissions tables
- Admin panel: /admin/users (list, filter, search, paginate), user detail card
  with activate/suspend/reset-password/send-invite/edit/delete actions
- Admin roles management: /admin/roles with per-role permission assignment
- Extend user profile card: role, status, Evotor ID, email confirmation badge
- Auth routes: register, login, logout, confirm-email, forgot/reset password
- Alembic migrations 0002 (full schema + new fields) and 0003 (RBAC + seeds)
- Port Pico CSS + Bootstrap Icons UI from Node.js commit (854c912)

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

web/templates/message.html

@@ -0,0 +1,18 @@
+{% extends "base.html" %}
+{% block title %}{{ title }} — ЭВОСИНК{% endblock %}
+
+{% block content %}
+<div class="row justify-center">
+    <div class="col-sm-10 col-md-6 col-lg-5">
+        <article class="card mt-5 text-center">
+            <div class="card-body" style="padding: 2.5rem;">
+                <h1 style="font-size:1.3rem;" class="mb-3">{{ title }}</h1>
+                <p class="text-muted">{{ message }}</p>
+                {% if link %}
+                    <a href="{{ link }}" role="button" class="mt-2">{{ link_text }}</a>
+                {% endif %}
+            </div>
+        </article>
+    </div>
+</div>
+{% endblock %}