feat(Chat): implement chat incident reporting feature

- Added reportChatIncident method in ChatController to handle reporting of chat incidents.
- Introduced a new API route for reporting incidents in chatRouter.
- Implemented chatService methods to ensure the chat report table is created and to handle incident data storage.
- Enhanced frontend components to allow users to report incidents in both multi and random chat dialogs.
- Updated internationalization files to include new strings for reporting functionality in multiple languages.

frontend/src/dialogues/chat/RandomChatDialog.vue

@@ -32,6 +32,14 @@
                     <input type="text" v-model="inputtext" @keyup.enter="sendMessage" />
                 </label>
                 <img src="/images/icons/enter16.png" @click="sendMessage" />
+                <button
+                    v-if="partner"
+                    type="button"
+                    class="report-btn"
+                    @click="reportCurrentChat"
+                >
+                    {{ $t('chat.randomchat.report') }}
+                </button>
                 <img src="/images/icons/dice16.png" />
             </div>
         </div>
@@ -61,6 +69,7 @@ import DialogWidget from '@/components/DialogWidget.vue';
 import { mapGetters } from 'vuex';
 import axios from 'axios';
 import DOMPurify from 'dompurify';
+import { reportChatIncident } from '@/api/chatApi.js';
 
 export default {
     name: 'RandomChatDialog',
@@ -245,6 +254,37 @@ export default {
                 this.messages.push({ type: 'system', tr: 'chat.randomchat.waitingForMatch' });
             }
         },
+        async reportCurrentChat() {
+            if (!this.partner || !this.messages.length) return;
+            const confirmed = window.confirm(this.$t('chat.randomchat.reportConfirm'));
+            if (!confirmed) return;
+            const payload = {
+                context: 'random_chat',
+                reporterHashedId: this.user?.hashedId || null,
+                reporterRandomId: this.userId || null,
+                reporterUsername: this.user?.username || null,
+                offenderRandomId: this.partner?.id || null,
+                offenderUsername: this.$t('chat.randomchat.partner'),
+                incidentAt: new Date().toISOString(),
+                chatHistory: this.messages.map((entry) => ({
+                    type: entry?.type || 'message',
+                    user: entry?.type === 'self' ? (this.user?.username || 'self') : (entry?.user || 'partner'),
+                    text: entry?.tr ? this.$t(entry.tr) : (entry?.text || ''),
+                    timestamp: Date.now(),
+                })),
+                metadata: {
+                    mode: 'random_chat',
+                    partnerAge: this.partner?.age || null,
+                    partnerGender: this.partner?.gender || null
+                }
+            };
+            try {
+                await reportChatIncident(payload);
+                this.messages.push({ type: 'system', text: this.$t('chat.randomchat.reportSent') });
+            } catch (_) {
+                this.messages.push({ type: 'system', text: this.$t('chat.randomchat.reportError') });
+            }
+        },
         
         renderMessage(message) {
             if (message.type === 'system') {
@@ -318,4 +358,8 @@ export default {
 .inputline>label>input {
     flex: 1;
 }
+
+.report-btn {
+    margin-left: 0.4em;
+}
 </style>