feat: динамические формы обучения + вкладка группы в админке

backend/src/main/java/com/magistr/app/controller/EducationFormController.java

@@ -0,0 +1,67 @@
+package com.magistr.app.controller;
+
+import com.magistr.app.model.EducationForm;
+import com.magistr.app.model.StudentGroup;
+import com.magistr.app.repository.EducationFormRepository;
+import com.magistr.app.repository.GroupRepository;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+import java.util.Map;
+
+@RestController
+@RequestMapping("/api/education-forms")
+public class EducationFormController {
+
+    private final EducationFormRepository educationFormRepository;
+    private final GroupRepository groupRepository;
+
+    public EducationFormController(EducationFormRepository educationFormRepository,
+                                   GroupRepository groupRepository) {
+        this.educationFormRepository = educationFormRepository;
+        this.groupRepository = groupRepository;
+    }
+
+    @GetMapping
+    public List<Map<String, Object>> getAll() {
+        return educationFormRepository.findAll().stream()
+                .map(ef -> Map.<String, Object>of("id", ef.getId(), "name", ef.getName()))
+                .toList();
+    }
+
+    @PostMapping
+    public ResponseEntity<?> create(@RequestBody Map<String, String> body) {
+        String name = body.get("name");
+        if (name == null || name.isBlank()) {
+            return ResponseEntity.badRequest().body(Map.of("message", "Название обязательно"));
+        }
+        name = name.trim();
+        if (educationFormRepository.findByName(name).isPresent()) {
+            return ResponseEntity.badRequest().body(Map.of("message", "Такая форма обучения уже существует"));
+        }
+
+        EducationForm ef = new EducationForm();
+        ef.setName(name);
+        educationFormRepository.save(ef);
+
+        return ResponseEntity.ok(Map.of("id", ef.getId(), "name", ef.getName()));
+    }
+
+    @DeleteMapping("/{id}")
+    public ResponseEntity<?> delete(@PathVariable Long id) {
+        if (!educationFormRepository.existsById(id)) {
+            return ResponseEntity.notFound().build();
+        }
+
+        // Check if any groups use this education form
+        List<StudentGroup> linked = groupRepository.findByEducationFormId(id);
+        if (!linked.isEmpty()) {
+            return ResponseEntity.badRequest().body(Map.of(
+                    "message", "Невозможно удалить: есть привязанные группы (" + linked.size() + ")"));
+        }
+
+        educationFormRepository.deleteById(id);
+        return ResponseEntity.ok(Map.of("message", "Форма обучения удалена"));
+    }
+}

backend/src/main/java/com/magistr/app/controller/GroupController.java

@@ -0,0 +1,77 @@
+package com.magistr.app.controller;
+
+import com.magistr.app.dto.CreateGroupRequest;
+import com.magistr.app.dto.GroupResponse;
+import com.magistr.app.model.EducationForm;
+import com.magistr.app.model.StudentGroup;
+import com.magistr.app.repository.EducationFormRepository;
+import com.magistr.app.repository.GroupRepository;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+import java.util.Map;
+import java.util.Optional;
+
+@RestController
+@RequestMapping("/api/groups")
+public class GroupController {
+
+    private final GroupRepository groupRepository;
+    private final EducationFormRepository educationFormRepository;
+
+    public GroupController(GroupRepository groupRepository,
+                           EducationFormRepository educationFormRepository) {
+        this.groupRepository = groupRepository;
+        this.educationFormRepository = educationFormRepository;
+    }
+
+    @GetMapping
+    public List<GroupResponse> getAllGroups() {
+        return groupRepository.findAll().stream()
+                .map(g -> new GroupResponse(
+                        g.getId(),
+                        g.getName(),
+                        g.getEducationForm().getId(),
+                        g.getEducationForm().getName()))
+                .toList();
+    }
+
+    @PostMapping
+    public ResponseEntity<?> createGroup(@RequestBody CreateGroupRequest request) {
+        if (request.getName() == null || request.getName().isBlank()) {
+            return ResponseEntity.badRequest().body(Map.of("message", "Название группы обязательно"));
+        }
+        if (groupRepository.findByName(request.getName().trim()).isPresent()) {
+            return ResponseEntity.badRequest().body(Map.of("message", "Группа с таким названием уже существует"));
+        }
+        if (request.getEducationFormId() == null) {
+            return ResponseEntity.badRequest().body(Map.of("message", "Форма обучения обязательна"));
+        }
+
+        Optional<EducationForm> efOpt = educationFormRepository.findById(request.getEducationFormId());
+        if (efOpt.isEmpty()) {
+            return ResponseEntity.badRequest().body(Map.of("message", "Форма обучения не найдена"));
+        }
+
+        StudentGroup group = new StudentGroup();
+        group.setName(request.getName().trim());
+        group.setEducationForm(efOpt.get());
+        groupRepository.save(group);
+
+        return ResponseEntity.ok(new GroupResponse(
+                group.getId(),
+                group.getName(),
+                group.getEducationForm().getId(),
+                group.getEducationForm().getName()));
+    }
+
+    @DeleteMapping("/{id}")
+    public ResponseEntity<?> deleteGroup(@PathVariable Long id) {
+        if (!groupRepository.existsById(id)) {
+            return ResponseEntity.notFound().build();
+        }
+        groupRepository.deleteById(id);
+        return ResponseEntity.ok(Map.of("message", "Группа удалена"));
+    }
+}

backend/src/main/java/com/magistr/app/dto/CreateGroupRequest.java

@@ -0,0 +1,23 @@
+package com.magistr.app.dto;
+
+public class CreateGroupRequest {
+
+    private String name;
+    private Long educationFormId;
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public Long getEducationFormId() {
+        return educationFormId;
+    }
+
+    public void setEducationFormId(Long educationFormId) {
+        this.educationFormId = educationFormId;
+    }
+}

backend/src/main/java/com/magistr/app/dto/GroupResponse.java

@@ -0,0 +1,32 @@
+package com.magistr.app.dto;
+
+public class GroupResponse {
+
+    private Long id;
+    private String name;
+    private Long educationFormId;
+    private String educationFormName;
+
+    public GroupResponse(Long id, String name, Long educationFormId, String educationFormName) {
+        this.id = id;
+        this.name = name;
+        this.educationFormId = educationFormId;
+        this.educationFormName = educationFormName;
+    }
+
+    public Long getId() {
+        return id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public Long getEducationFormId() {
+        return educationFormId;
+    }
+
+    public String getEducationFormName() {
+        return educationFormName;
+    }
+}

backend/src/main/java/com/magistr/app/model/EducationForm.java

@@ -0,0 +1,34 @@
+package com.magistr.app.model;
+
+import jakarta.persistence.*;
+
+@Entity
+@Table(name = "education_forms")
+public class EducationForm {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+
+    @Column(unique = true, nullable = false, length = 100)
+    private String name;
+
+    public EducationForm() {
+    }
+
+    public Long getId() {
+        return id;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+}

backend/src/main/java/com/magistr/app/model/StudentGroup.java

@@ -0,0 +1,46 @@
+package com.magistr.app.model;
+
+import jakarta.persistence.*;
+
+@Entity
+@Table(name = "student_groups")
+public class StudentGroup {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+
+    @Column(unique = true, nullable = false, length = 100)
+    private String name;
+
+    @ManyToOne(optional = false)
+    @JoinColumn(name = "education_form_id", nullable = false)
+    private EducationForm educationForm;
+
+    public StudentGroup() {
+    }
+
+    public Long getId() {
+        return id;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public EducationForm getEducationForm() {
+        return educationForm;
+    }
+
+    public void setEducationForm(EducationForm educationForm) {
+        this.educationForm = educationForm;
+    }
+}

backend/src/main/java/com/magistr/app/repository/EducationFormRepository.java

@@ -0,0 +1,11 @@
+package com.magistr.app.repository;
+
+import com.magistr.app.model.EducationForm;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+import java.util.Optional;
+
+public interface EducationFormRepository extends JpaRepository<EducationForm, Long> {
+
+    Optional<EducationForm> findByName(String name);
+}

backend/src/main/java/com/magistr/app/repository/GroupRepository.java

@@ -0,0 +1,14 @@
+package com.magistr.app.repository;
+
+import com.magistr.app.model.StudentGroup;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+import java.util.List;
+import java.util.Optional;
+
+public interface GroupRepository extends JpaRepository<StudentGroup, Long> {
+
+    Optional<StudentGroup> findByName(String name);
+
+    List<StudentGroup> findByEducationFormId(Long educationFormId);
+}

db/init/init.sql

@@ -11,3 +11,17 @@ CREATE TABLE IF NOT EXISTS users (
 INSERT INTO users (username, password, role)
 VALUES ('admin', crypt('admin', gen_salt('bf', 10)), 'ADMIN')
 ON CONFLICT (username) DO NOTHING;
+
+CREATE TABLE IF NOT EXISTS education_forms (
+    id BIGSERIAL PRIMARY KEY,
+    name VARCHAR(100) UNIQUE NOT NULL
+);
+
+INSERT INTO education_forms (name) VALUES ('Бакалавриат'), ('Магистратура'), ('Специалитет')
+ON CONFLICT (name) DO NOTHING;
+
+CREATE TABLE IF NOT EXISTS student_groups (
+    id BIGSERIAL PRIMARY KEY,
+    name VARCHAR(100) UNIQUE NOT NULL,
+    education_form_id BIGINT NOT NULL REFERENCES education_forms(id)
+);

frontend/admin/admin.css

@@ -339,6 +339,86 @@ tbody tr:hover {
     color: var(--success);
 }
 
+/* ===== Education Form Badge ===== */
+.badge-ef {
+    background: rgba(99, 102, 241, 0.15);
+    color: var(--accent-hover);
+}
+
+/* ===== Card Header Row ===== */
+.card-header-row {
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+    flex-wrap: wrap;
+    gap: 0.75rem;
+    margin-bottom: 1rem;
+}
+
+.card-header-row h2 {
+    margin-bottom: 0;
+}
+
+.filter-row {
+    display: flex;
+    align-items: center;
+    gap: 0.5rem;
+}
+
+.filter-row label {
+    font-size: 0.78rem;
+    font-weight: 500;
+    color: var(--text-secondary);
+    text-transform: uppercase;
+    letter-spacing: 0.04em;
+    white-space: nowrap;
+}
+
+.filter-row select {
+    padding: 0.45rem 2rem 0.45rem 0.7rem;
+    background: var(--bg-input);
+    border: 1px solid transparent;
+    border-radius: var(--radius-sm);
+    color: var(--text-primary);
+    font-family: inherit;
+    font-size: 0.85rem;
+    outline: none;
+    cursor: pointer;
+    appearance: none;
+    background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%239ca3af' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
+    background-repeat: no-repeat;
+    background-position: right 0.6rem center;
+    transition: background var(--transition), border-color var(--transition), box-shadow var(--transition);
+}
+
+.filter-row select:focus {
+    background-color: var(--bg-input-focus);
+    border-color: var(--accent);
+    box-shadow: 0 0 0 3px var(--accent-glow);
+}
+
+.filter-row select option {
+    background: #1a1a2e;
+    color: var(--text-primary);
+}
+
+/* ===== Tab Content ===== */
+.tab-content {
+    animation: fadeIn 0.2s ease;
+}
+
+@keyframes fadeIn {
+    from {
+        opacity: 0;
+        transform: translateY(4px);
+    }
+
+    to {
+        opacity: 1;
+        transform: translateY(0);
+    }
+}
+
 /* ===== Delete Button ===== */
 .btn-delete {
     padding: 0.35rem 0.7rem;

frontend/admin/admin.js

@@ -9,36 +9,103 @@
         return;
     }
 
-    const tbody = document.getElementById('users-tbody');
-    const createForm = document.getElementById('create-form');
-    const createAlert = document.getElementById('create-alert');
+    // ---- DOM refs ----
+    const pageTitle = document.getElementById('page-title');
     const btnLogout = document.getElementById('btn-logout');
     const menuToggle = document.getElementById('menu-toggle');
     const sidebar = document.querySelector('.sidebar');
     const sidebarOverlay = document.getElementById('sidebar-overlay');
 
-    // ---- Mobile Menu ----
-    function toggleSidebar() {
-        sidebar.classList.toggle('open');
-        sidebarOverlay.classList.toggle('open');
+    // Users
+    const usersTbody = document.getElementById('users-tbody');
+    const createForm = document.getElementById('create-form');
+    const createAlert = document.getElementById('create-alert');
+
+    // Groups
+    const groupsTbody = document.getElementById('groups-tbody');
+    const createGroupForm = document.getElementById('create-group-form');
+    const createGroupAlert = document.getElementById('create-group-alert');
+    const newGroupEfSelect = document.getElementById('new-group-ef');
+    const filterEfSelect = document.getElementById('filter-ef');
+
+    // Education Forms
+    const efTbody = document.getElementById('ef-tbody');
+    const createEfForm = document.getElementById('create-ef-form');
+    const createEfAlert = document.getElementById('create-ef-alert');
+
+    const navItems = document.querySelectorAll('.nav-item[data-tab]');
+    const tabContents = document.querySelectorAll('.tab-content');
+
+    // ---- State ----
+    let allGroups = [];
+    let allEducationForms = [];
+
+    // ---- Tab Switching ----
+    const TAB_TITLES = {
+        users: 'Управление пользователями',
+        groups: 'Управление группами',
+        'edu-forms': 'Формы обучения',
+    };
+
+    navItems.forEach(item => {
+        item.addEventListener('click', (e) => {
+            e.preventDefault();
+            switchTab(item.dataset.tab);
+        });
+    });
+
+    function switchTab(tab) {
+        navItems.forEach(n => n.classList.remove('active'));
+        document.querySelector(`.nav-item[data-tab="${tab}"]`)?.classList.add('active');
+
+        tabContents.forEach(tc => tc.style.display = 'none');
+        const target = document.getElementById('tab-' + tab);
+        if (target) target.style.display = '';
+
+        pageTitle.textContent = TAB_TITLES[tab] || '';
+
+        if (tab === 'users') loadUsers();
+        if (tab === 'groups') { loadEducationForms().then(() => loadGroups()); }
+        if (tab === 'edu-forms') loadEducationForms();
+
+        sidebar.classList.remove('open');
+        sidebarOverlay.classList.remove('open');
     }
 
-    menuToggle.addEventListener('click', toggleSidebar);
-    sidebarOverlay.addEventListener('click', toggleSidebar);
+    // ---- Mobile Menu ----
+    menuToggle.addEventListener('click', () => {
+        sidebar.classList.toggle('open');
+        sidebarOverlay.classList.toggle('open');
+    });
+    sidebarOverlay.addEventListener('click', () => {
+        sidebar.classList.remove('open');
+        sidebarOverlay.classList.remove('open');
+    });
 
-    const ROLE_LABELS = {
-        ADMIN: 'Администратор',
-        TEACHER: 'Преподаватель',
-        STUDENT: 'Студент',
-    };
+    // ---- Helpers ----
+    const ROLE_LABELS = { ADMIN: 'Администратор', TEACHER: 'Преподаватель', STUDENT: 'Студент' };
+    const ROLE_BADGE = { ADMIN: 'badge-admin', TEACHER: 'badge-teacher', STUDENT: 'badge-student' };
 
-    const ROLE_BADGE = {
-        ADMIN: 'badge-admin',
-        TEACHER: 'badge-teacher',
-        STUDENT: 'badge-student',
-    };
+    function escapeHtml(str) {
+        const div = document.createElement('div');
+        div.textContent = str;
+        return div.innerHTML;
+    }
+
+    function showAlert(el, msg, type) {
+        el.className = 'form-alert ' + type;
+        el.textContent = msg;
+    }
+
+    function hideAlert(el) {
+        el.className = 'form-alert';
+        el.textContent = '';
+    }
+
+    // ============================================================
+    //  USERS
+    // ============================================================
 
-    // ---- Load Users ----
     async function loadUsers() {
         try {
             const res = await fetch('/api/users', {
@@ -47,112 +114,241 @@
             const users = await res.json();
             renderUsers(users);
         } catch (e) {
-            tbody.innerHTML = '<tr><td colspan="4" class="loading-row">Ошибка загрузки</td></tr>';
+            usersTbody.innerHTML = '<tr><td colspan="4" class="loading-row">Ошибка загрузки</td></tr>';
         }
     }
 
     function renderUsers(users) {
         if (!users.length) {
-            tbody.innerHTML = '<tr><td colspan="4" class="loading-row">Нет пользователей</td></tr>';
+            usersTbody.innerHTML = '<tr><td colspan="4" class="loading-row">Нет пользователей</td></tr>';
             return;
         }
-
-        tbody.innerHTML = users.map(u => `
+        usersTbody.innerHTML = users.map(u => `
       <tr>
         <td>${u.id}</td>
         <td>${escapeHtml(u.username)}</td>
         <td><span class="badge ${ROLE_BADGE[u.role] || ''}">${ROLE_LABELS[u.role] || u.role}</span></td>
         <td><button class="btn-delete" data-id="${u.id}">Удалить</button></td>
-      </tr>
-    `).join('');
+      </tr>`).join('');
     }
 
-    function escapeHtml(str) {
-        const div = document.createElement('div');
-        div.textContent = str;
-        return div.innerHTML;
-    }
-
-    // ---- Create User ----
     createForm.addEventListener('submit', async (e) => {
         e.preventDefault();
-        hideAlert();
-
+        hideAlert(createAlert);
         const username = document.getElementById('new-username').value.trim();
         const password = document.getElementById('new-password').value;
         const role = document.getElementById('new-role').value;
-
-        if (!username || !password) {
-            showAlert('Заполните все поля', 'error');
-            return;
-        }
+        if (!username || !password) { showAlert(createAlert, 'Заполните все поля', 'error'); return; }
 
         try {
             const res = await fetch('/api/users', {
                 method: 'POST',
-                headers: {
-                    'Content-Type': 'application/json',
-                    'Authorization': 'Bearer ' + token,
-                },
+                headers: { 'Content-Type': 'application/json', 'Authorization': 'Bearer ' + token },
                 body: JSON.stringify({ username, password, role }),
             });
-
             const data = await res.json();
-
             if (res.ok) {
-                showAlert(`Пользователь "${data.username}" создан`, 'success');
+                showAlert(createAlert, `Пользователь "${data.username}" создан`, 'success');
                 createForm.reset();
                 loadUsers();
             } else {
-                showAlert(data.message || 'Ошибка создания', 'error');
-            }
-        } catch (e) {
-            showAlert('Ошибка соединения', 'error');
+                showAlert(createAlert, data.message || 'Ошибка создания', 'error');
             }
+        } catch (e) { showAlert(createAlert, 'Ошибка соединения', 'error'); }
     });
 
-    // ---- Delete User ----
-    tbody.addEventListener('click', async (e) => {
+    usersTbody.addEventListener('click', async (e) => {
         const btn = e.target.closest('.btn-delete');
         if (!btn) return;
-
-        const id = btn.dataset.id;
         if (!confirm('Удалить пользователя?')) return;
-
         try {
-            const res = await fetch('/api/users/' + id, {
+            const res = await fetch('/api/users/' + btn.dataset.id, {
                 method: 'DELETE',
                 headers: { 'Authorization': 'Bearer ' + token },
             });
-
-            if (res.ok) {
-                loadUsers();
-            } else {
-                alert('Ошибка удаления');
-            }
-        } catch (e) {
-            alert('Ошибка соединения');
-        }
+            if (res.ok) loadUsers();
+            else alert('Ошибка удаления');
+        } catch (e) { alert('Ошибка соединения'); }
     });
 
-    // ---- Logout ----
+    // ============================================================
+    //  EDUCATION FORMS
+    // ============================================================
+
+    async function loadEducationForms() {
+        try {
+            const res = await fetch('/api/education-forms', {
+                headers: { 'Authorization': 'Bearer ' + token },
+            });
+            allEducationForms = await res.json();
+            renderEfTable(allEducationForms);
+            populateEfSelects(allEducationForms);
+        } catch (e) {
+            efTbody.innerHTML = '<tr><td colspan="3" class="loading-row">Ошибка загрузки</td></tr>';
+        }
+    }
+
+    function renderEfTable(forms) {
+        if (!forms.length) {
+            efTbody.innerHTML = '<tr><td colspan="3" class="loading-row">Нет форм обучения</td></tr>';
+            return;
+        }
+        efTbody.innerHTML = forms.map(ef => `
+      <tr>
+        <td>${ef.id}</td>
+        <td>${escapeHtml(ef.name)}</td>
+        <td><button class="btn-delete" data-id="${ef.id}">Удалить</button></td>
+      </tr>`).join('');
+    }
+
+    function populateEfSelects(forms) {
+        // Group creation select
+        const currentVal = newGroupEfSelect.value;
+        newGroupEfSelect.innerHTML = forms.map(ef =>
+            `<option value="${ef.id}">${escapeHtml(ef.name)}</option>`
+        ).join('');
+        if (currentVal && forms.find(f => f.id == currentVal)) {
+            newGroupEfSelect.value = currentVal;
+        }
+
+        // Filter select
+        const currentFilter = filterEfSelect.value;
+        filterEfSelect.innerHTML = '<option value="">Все формы</option>' +
+            forms.map(ef =>
+                `<option value="${ef.id}">${escapeHtml(ef.name)}</option>`
+            ).join('');
+        if (currentFilter) filterEfSelect.value = currentFilter;
+    }
+
+    createEfForm.addEventListener('submit', async (e) => {
+        e.preventDefault();
+        hideAlert(createEfAlert);
+        const name = document.getElementById('new-ef-name').value.trim();
+        if (!name) { showAlert(createEfAlert, 'Введите название', 'error'); return; }
+
+        try {
+            const res = await fetch('/api/education-forms', {
+                method: 'POST',
+                headers: { 'Content-Type': 'application/json', 'Authorization': 'Bearer ' + token },
+                body: JSON.stringify({ name }),
+            });
+            const data = await res.json();
+            if (res.ok) {
+                showAlert(createEfAlert, `Форма "${data.name}" создана`, 'success');
+                createEfForm.reset();
+                loadEducationForms();
+            } else {
+                showAlert(createEfAlert, data.message || 'Ошибка создания', 'error');
+            }
+        } catch (e) { showAlert(createEfAlert, 'Ошибка соединения', 'error'); }
+    });
+
+    efTbody.addEventListener('click', async (e) => {
+        const btn = e.target.closest('.btn-delete');
+        if (!btn) return;
+        if (!confirm('Удалить форму обучения?')) return;
+        try {
+            const res = await fetch('/api/education-forms/' + btn.dataset.id, {
+                method: 'DELETE',
+                headers: { 'Authorization': 'Bearer ' + token },
+            });
+            if (res.ok) {
+                loadEducationForms();
+            } else {
+                const data = await res.json();
+                alert(data.message || 'Ошибка удаления');
+            }
+        } catch (e) { alert('Ошибка соединения'); }
+    });
+
+    // ============================================================
+    //  GROUPS
+    // ============================================================
+
+    async function loadGroups() {
+        try {
+            const res = await fetch('/api/groups', {
+                headers: { 'Authorization': 'Bearer ' + token },
+            });
+            allGroups = await res.json();
+            applyGroupFilter();
+        } catch (e) {
+            groupsTbody.innerHTML = '<tr><td colspan="4" class="loading-row">Ошибка загрузки</td></tr>';
+        }
+    }
+
+    function applyGroupFilter() {
+        const filterId = filterEfSelect.value;
+        const filtered = filterId
+            ? allGroups.filter(g => g.educationFormId == filterId)
+            : allGroups;
+        renderGroups(filtered);
+    }
+
+    filterEfSelect.addEventListener('change', applyGroupFilter);
+
+    function renderGroups(groups) {
+        if (!groups.length) {
+            groupsTbody.innerHTML = '<tr><td colspan="4" class="loading-row">Нет групп</td></tr>';
+            return;
+        }
+        groupsTbody.innerHTML = groups.map(g => `
+      <tr>
+        <td>${g.id}</td>
+        <td>${escapeHtml(g.name)}</td>
+        <td><span class="badge badge-ef">${escapeHtml(g.educationFormName)}</span></td>
+        <td><button class="btn-delete" data-id="${g.id}">Удалить</button></td>
+      </tr>`).join('');
+    }
+
+    createGroupForm.addEventListener('submit', async (e) => {
+        e.preventDefault();
+        hideAlert(createGroupAlert);
+        const name = document.getElementById('new-group-name').value.trim();
+        const educationFormId = newGroupEfSelect.value;
+        if (!name) { showAlert(createGroupAlert, 'Введите название группы', 'error'); return; }
+        if (!educationFormId) { showAlert(createGroupAlert, 'Выберите форму обучения', 'error'); return; }
+
+        try {
+            const res = await fetch('/api/groups', {
+                method: 'POST',
+                headers: { 'Content-Type': 'application/json', 'Authorization': 'Bearer ' + token },
+                body: JSON.stringify({ name, educationFormId: Number(educationFormId) }),
+            });
+            const data = await res.json();
+            if (res.ok) {
+                showAlert(createGroupAlert, `Группа "${data.name}" создана`, 'success');
+                createGroupForm.reset();
+                loadGroups();
+            } else {
+                showAlert(createGroupAlert, data.message || 'Ошибка создания', 'error');
+            }
+        } catch (e) { showAlert(createGroupAlert, 'Ошибка соединения', 'error'); }
+    });
+
+    groupsTbody.addEventListener('click', async (e) => {
+        const btn = e.target.closest('.btn-delete');
+        if (!btn) return;
+        if (!confirm('Удалить группу?')) return;
+        try {
+            const res = await fetch('/api/groups/' + btn.dataset.id, {
+                method: 'DELETE',
+                headers: { 'Authorization': 'Bearer ' + token },
+            });
+            if (res.ok) loadGroups();
+            else alert('Ошибка удаления');
+        } catch (e) { alert('Ошибка соединения'); }
+    });
+
+    // ============================================================
+    //  LOGOUT & INIT
+    // ============================================================
+
     btnLogout.addEventListener('click', () => {
         localStorage.removeItem('token');
         localStorage.removeItem('role');
         window.location.href = '/';
     });
 
-    // ---- Helpers ----
-    function showAlert(msg, type) {
-        createAlert.className = 'form-alert ' + type;
-        createAlert.textContent = msg;
-    }
-
-    function hideAlert() {
-        createAlert.className = 'form-alert';
-        createAlert.textContent = '';
-    }
-
-    // Init
     loadUsers();
 })();

frontend/admin/index.html

@@ -31,7 +31,7 @@
             </div>
         </div>
         <nav class="sidebar-nav">
-            <a href="/admin/" class="nav-item active">
+            <a href="#" class="nav-item active" data-tab="users">
                 <svg width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"
                     stroke-linecap="round" stroke-linejoin="round">
                     <path d="M17 21v-2a4 4 0 0 0-4-4H5a4 4 0 0 0-4 4v2" />
@@ -41,6 +41,24 @@
                 </svg>
                 Пользователи
             </a>
+            <a href="#" class="nav-item" data-tab="groups">
+                <svg width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"
+                    stroke-linecap="round" stroke-linejoin="round">
+                    <path d="M2 3h6a4 4 0 0 1 4 4v14a3 3 0 0 0-3-3H2z" />
+                    <path d="M22 3h-6a4 4 0 0 0-4 4v14a3 3 0 0 1 3-3h7z" />
+                </svg>
+                Группы
+            </a>
+            <a href="#" class="nav-item" data-tab="edu-forms">
+                <svg width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"
+                    stroke-linecap="round" stroke-linejoin="round">
+                    <path d="M4 19.5A2.5 2.5 0 0 1 6.5 17H20" />
+                    <path d="M6.5 2H20v20H6.5A2.5 2.5 0 0 1 4 19.5v-15A2.5 2.5 0 0 1 6.5 2z" />
+                    <line x1="9" y1="7" x2="17" y2="7" />
+                    <line x1="9" y1="11" x2="15" y2="11" />
+                </svg>
+                Формы обучения
+            </a>
         </nav>
         <div class="sidebar-footer">
             <button class="btn-logout" id="btn-logout">
@@ -69,11 +87,11 @@
                     <line x1="3" y1="18" x2="21" y2="18" />
                 </svg>
             </button>
-            <h1>Управление пользователями</h1>
+            <h1 id="page-title">Управление пользователями</h1>
         </header>
 
-        <section class="content">
-            <!-- Create User Card -->
+        <!-- ===== Users Tab ===== -->
+        <section class="content tab-content" id="tab-users">
             <div class="card create-card">
                 <h2>Новый пользователь</h2>
                 <form id="create-form">
@@ -99,8 +117,6 @@
                     <div class="form-alert" id="create-alert" role="alert"></div>
                 </form>
             </div>
-
-            <!-- Users Table -->
             <div class="card">
                 <h2>Все пользователи</h2>
                 <div class="table-wrap">
@@ -122,6 +138,93 @@
                 </div>
             </div>
         </section>
+
+        <!-- ===== Groups Tab ===== -->
+        <section class="content tab-content" id="tab-groups" style="display:none;">
+            <div class="card create-card">
+                <h2>Новая группа</h2>
+                <form id="create-group-form">
+                    <div class="form-row">
+                        <div class="form-group">
+                            <label for="new-group-name">Название группы</label>
+                            <input type="text" id="new-group-name" placeholder="ИВТ-21-1" required>
+                        </div>
+                        <div class="form-group">
+                            <label for="new-group-ef">Форма обучения</label>
+                            <select id="new-group-ef">
+                                <option value="">Загрузка...</option>
+                            </select>
+                        </div>
+                        <button type="submit" class="btn-create">Создать</button>
+                    </div>
+                    <div class="form-alert" id="create-group-alert" role="alert"></div>
+                </form>
+            </div>
+            <div class="card">
+                <div class="card-header-row">
+                    <h2>Все группы</h2>
+                    <div class="filter-row">
+                        <label for="filter-ef">Фильтр:</label>
+                        <select id="filter-ef">
+                            <option value="">Все формы</option>
+                        </select>
+                    </div>
+                </div>
+                <div class="table-wrap">
+                    <table id="groups-table">
+                        <thead>
+                            <tr>
+                                <th>ID</th>
+                                <th>Название</th>
+                                <th>Форма обучения</th>
+                                <th></th>
+                            </tr>
+                        </thead>
+                        <tbody id="groups-tbody">
+                            <tr>
+                                <td colspan="4" class="loading-row">Загрузка...</td>
+                            </tr>
+                        </tbody>
+                    </table>
+                </div>
+            </div>
+        </section>
+
+        <!-- ===== Education Forms Tab ===== -->
+        <section class="content tab-content" id="tab-edu-forms" style="display:none;">
+            <div class="card create-card">
+                <h2>Новая форма обучения</h2>
+                <form id="create-ef-form">
+                    <div class="form-row">
+                        <div class="form-group">
+                            <label for="new-ef-name">Название</label>
+                            <input type="text" id="new-ef-name" placeholder="Бакалавриат" required>
+                        </div>
+                        <button type="submit" class="btn-create">Создать</button>
+                    </div>
+                    <div class="form-alert" id="create-ef-alert" role="alert"></div>
+                </form>
+            </div>
+            <div class="card">
+                <h2>Все формы обучения</h2>
+                <div class="table-wrap">
+                    <table id="ef-table">
+                        <thead>
+                            <tr>
+                                <th>ID</th>
+                                <th>Название</th>
+                                <th></th>
+                            </tr>
+                        </thead>
+                        <tbody id="ef-tbody">
+                            <tr>
+                                <td colspan="3" class="loading-row">Загрузка...</td>
+                            </tr>
+                        </tbody>
+                    </table>
+                </div>
+            </div>
+        </section>
     </main>
 
     <script src="admin.js"></script>