Admin: password confirmation field + validation

- Added password_confirm field in user edit/new forms
- Validation: passwords must match, min 6 chars
- New user: password required
- Edit user: password optional (leave empty to keep)

lib/admin.js

@@ -101,7 +101,7 @@ async function setupAdmin(app) {
         options: {
           navigation: { name: 'Пользователи', icon: 'User' },
           listProperties: ['id', 'email', 'display_name', 'role', 'is_blocked', 'last_login'],
-          editProperties: ['email', 'display_name', 'role', 'is_blocked', 'password'],
+          editProperties: ['email', 'display_name', 'role', 'is_blocked', 'password', 'password_confirm'],
           showProperties: ['id', 'email', 'display_name', 'role', 'is_blocked', 'created_at', 'last_login'],
           properties: {
             password_hash: { isVisible: false },
@@ -110,26 +110,40 @@ async function setupAdmin(app) {
               isVisible: { list: false, show: false, edit: true, filter: false },
               description: 'Оставьте пустым чтобы не менять',
             },
+            password_confirm: {
+              type: 'password',
+              isVisible: { list: false, show: false, edit: true, filter: false },
+              description: 'Повторите пароль',
+            },
             role: { availableValues: [{ value: 'user', label: 'User' }, { value: 'admin', label: 'Admin' }] },
           },
           actions: {
             edit: {
               before: async (request) => {
-                if (request.payload && request.payload.password && request.payload.password.trim()) {
+                const pw = request.payload?.password?.trim();
+                const pw2 = request.payload?.password_confirm?.trim();
+                if (pw) {
+                  if (pw !== pw2) throw new Error('Пароли не совпадают');
+                  if (pw.length < 6) throw new Error('Пароль минимум 6 символов');
                   const bcrypt = require('bcrypt');
-                  request.payload.password_hash = await bcrypt.hash(request.payload.password, 10);
+                  request.payload.password_hash = await bcrypt.hash(pw, 10);
                 }
                 delete request.payload.password;
+                delete request.payload.password_confirm;
                 return request;
               },
             },
             new: {
               before: async (request) => {
-                if (request.payload && request.payload.password && request.payload.password.trim()) {
+                const pw = request.payload?.password?.trim();
+                const pw2 = request.payload?.password_confirm?.trim();
+                if (!pw) throw new Error('Пароль обязателен');
+                if (pw !== pw2) throw new Error('Пароли не совпадают');
+                if (pw.length < 6) throw new Error('Пароль минимум 6 символов');
                 const bcrypt = require('bcrypt');
-                  request.payload.password_hash = await bcrypt.hash(request.payload.password, 10);
+                request.payload.password_hash = await bcrypt.hash(pw, 10);
-                }
                 delete request.payload.password;
+                delete request.payload.password_confirm;
                 return request;
               },
             },