Синхронизация моделей, Docker настройки и исправление Angular шаблонов

- V1__init.sql: синхронизированы таблицы с Java моделями (users, folders, messages, contacts)
- docker-compose.yml: обновлён контекст сборки, переменные R2DBC/Flyway, порты (5433, 3026, 1443)
- backend/Dockerfile: обновлены пути COPY для нового контекста сборки
- settings.gradle: удалён frontend проект из Gradle
- contacts.component.html: исправлен ternary оператор с HTML на Angular @if/@else
- Фронтенд компоненты: обновления compose, inbox, layout, login, message-detail, register
- index.html, styles.css: обновления стилей и мета-данных

Co-authored-by: Junie <junie@jetbrains.com>

frontend/src/app/components/inbox/inbox.component.ts

@@ -19,9 +19,9 @@ import { of } from 'rxjs';
         <div class="flex gap-3">
           <input [(ngModel)]="searchQuery" (keyup.enter)="loadMessages()"
             class="flex-1 bg-slate-950/80 border border-cyan-500/40 rounded-xl px-4 py-2 text-sm text-slate-200 font-mono focus:outline-none focus:ring-2 focus:ring-pink-500 focus:border-cyan-400 transition-all"
-            placeholder="🔍 Search messages...">
+            placeholder="Search messages...">
           <button (click)="loadMessages()" class="cyber-btn px-6 py-2 rounded-xl text-xs font-bold">
-            SEARCH
+            <i class="fa-solid fa-magnifying-glass mr-1"></i> SEARCH
           </button>
         </div>
       </div>
@@ -29,13 +29,13 @@ import { of } from 'rxjs';
       <!-- Список писем -->
       <div class="glass-panel p-4">
         <h2 class="text-lg font-orbitron font-bold text-cyan-300 mb-4 flex items-center gap-2">
-          <span class="text-pink-500">📬</span> {{ folderName() }}
+          <i class="fa-solid fa-inbox text-pink-500"></i> {{ folderName() }}
           <span class="text-sm font-mono text-slate-400 ml-auto">{{ messages()?.length || 0 }} messages</span>
         </h2>
 
         @if (!messages() || messages().length === 0) {
           <div class="text-center py-12 text-slate-400 font-mono">
-            <p class="text-4xl mb-4">📭</p>
+            <i class="fa-solid fa-envelope-open-text text-4xl mb-4 text-slate-600"></i>
             <p>No messages yet</p>
           </div>
         } @else {
@@ -64,7 +64,7 @@ import { of } from 'rxjs';
                         </span>
                       }
                       @if (msg.flagged) {
-                        <span class="text-yellow-400 text-xs">★</span>
+                        <i class="fa-solid fa-star text-yellow-400 text-xs"></i>
                       }
                     </div>
                     <div class="text-sm text-cyan-400 font-rajdhani truncate group-hover:text-pink-400 transition-colors">
@@ -80,7 +80,7 @@ import { of } from 'rxjs';
                       {{ msg.sentAt | date:'MMM d, HH:mm' }}
                     </div>
                     @if (msg.hasAttachments) {
-                      <span class="text-xs text-purple-400 font-mono">📎 {{ msg.attachmentCount }}</span>
+                      <span class="text-xs text-purple-400 font-mono"><i class="fa-solid fa-paperclip mr-1"></i>{{ msg.attachmentCount }}</span>
                     }
                   </div>
                 </div>
@@ -95,7 +95,7 @@ import { of } from 'rxjs';
         <div class="glass-panel p-4 flex items-center justify-center gap-2">
           <button (click)="goToPage(page() - 1)" [disabled]="page() === 0"
             class="px-3 py-1 rounded-lg text-xs font-mono text-cyan-400 border border-cyan-500/30 hover:bg-cyan-500/10 disabled:opacity-30 disabled:cursor-not-allowed transition-all">
-            ← Prev
+            <i class="fa-solid fa-chevron-left mr-1"></i> Prev
           </button>
           @for (p of pageNumbers; track p) {
             <button (click)="goToPage(p)"
@@ -107,7 +107,7 @@ import { of } from 'rxjs';
           }
           <button (click)="goToPage(page() + 1)" [disabled]="page() >= totalPages() - 1"
             class="px-3 py-1 rounded-lg text-xs font-mono text-cyan-400 border border-cyan-500/30 hover:bg-cyan-500/10 disabled:opacity-30 disabled:cursor-not-allowed transition-all">
-            Next →
+            Next <i class="fa-solid fa-chevron-right ml-1"></i>
           </button>
           <span class="text-xs font-mono text-slate-500 ml-2">
             Page {{ page() + 1 }} of {{ totalPages() }}