Initial commit: LMS microservices scaffold

- Gradle multi-module: libs/{common-http,security-jwt,markdown,test-support},
  services/{identity,academic,progress,gateway}, web (Thymeleaf+htmx)
- identity-service: JWT auth (RSA), accounts, students, groups, enrollment,
  import from XLSX/CSV, credentials export, password reset
- academic-service: lab import from JSON/zip (markdown + YAML + variants),
  levels, API
- progress-service: schema for student levels and variant assignments
- gateway: Spring Cloud Gateway, JWT validation, route propagation
- web: Server-side UI with flex/footer layout, light/dark theme toggle,
  admin dashboard, groups CRUD, student portal placeholder
- docker-compose: PostgreSQL 18
- Tests: identity smoke test with Testcontainers

web/src/main/resources/templates/admin/dashboard.html

@@ -0,0 +1,48 @@
+<!DOCTYPE html>
+<html lang="ru" xmlns:th="http://www.thymeleaf.org"
+      th:replace="~{fragments/base :: layout(~{::title}, ~{::#content})}">
+<head><title>Панель — LMS</title></head>
+<body>
+<div id="content">
+    <h1 style="margin:0 0 1.5rem;font-size:1.5rem;font-weight:600;">Панель преподавателя</h1>
+
+    <div style="display:grid;gap:1rem;grid-template-columns:repeat(auto-fill,minmax(12rem,1fr));">
+        <div class="card" style="padding:1.5rem;">
+            <p style="font-size:0.875rem;color:var(--c-text-muted);margin:0;">Группы</p>
+            <p style="margin:0.5rem 0 0;font-size:1.875rem;font-weight:600;" th:text="${groupCount}">0</p>
+        </div>
+        <div class="card" style="padding:1.5rem;">
+            <p style="font-size:0.875rem;color:var(--c-text-muted);margin:0;">Студенты</p>
+            <p style="margin:0.5rem 0 0;font-size:1.875rem;font-weight:600;" th:text="${studentCount}">0</p>
+        </div>
+        <div class="card" style="padding:1.5rem;">
+            <p style="font-size:0.875rem;color:var(--c-text-muted);margin:0;">Лабораторные</p>
+            <p style="margin:0.5rem 0 0;font-size:1.875rem;font-weight:600;color:var(--c-text-muted);">скоро</p>
+        </div>
+    </div>
+
+    <div style="margin-top:2rem;">
+        <div style="display:flex;align-items:center;justify-content:space-between;margin-bottom:0.75rem;">
+            <h2 style="margin:0;font-size:1.125rem;font-weight:500;">Группы</h2>
+            <a th:href="@{/admin/groups}" style="font-size:0.875rem;">Все группы →</a>
+        </div>
+        <div class="card" style="padding:0;">
+            <table>
+                <thead>
+                <tr><th>Название</th><th>Студентов</th></tr>
+                </thead>
+                <tbody>
+                <tr th:each="group : ${groups}">
+                    <td><a th:href="@{/admin/groups/{id}(id=${group.id})}" th:text="${group.name}">—</a></td>
+                    <td th:text="${group.studentCount}">0</td>
+                </tr>
+                <tr th:if="${#lists.isEmpty(groups)}">
+                    <td colspan="2" style="text-align:center;color:var(--c-text-muted);padding:1.5rem;">Групп пока нет.</td>
+                </tr>
+                </tbody>
+            </table>
+        </div>
+    </div>
+</div>
+</body>
+</html>