feat: Update AI model, remove contribution documentation, and enhance DM channel naming and message data in the chat store.

client/src/stores/chat.js

@@ -313,11 +313,17 @@ export const useChatStore = defineStore('chat', () => {
         const [addr1, addr2] = [walletAddress.value, targetWallet].sort();
         const dmChannelId = `dm:${addr1}:${addr2}`;
 
+        // Find the other user's name
+        const otherUser = users.value.find(u => u.wallet_address === targetWallet);
+        const otherName = otherUser?.username || targetWallet.slice(0, 6) + '...';
+
         // Add to channels list if not exists
         if (!channels.value.find(c => c.id === dmChannelId)) {
             channels.value.push({
                 id: dmChannelId,
-                name: `DM: ${targetWallet.slice(0, 4)}...`
+                name: otherName,
+                isDM: true,
+                targetWallet
             });
         }
 
@@ -351,7 +357,9 @@ export const useChatStore = defineStore('chat', () => {
             // Map snake_case to camelCase and set status
             messages.value[channelId] = data.map(m => ({
                 ...m,
+                walletAddress: m.wallet_address,
                 txId: m.tx_id,
+                channelId: m.channel_id,
                 status: 'validated' // Messages from DB are confirmed
             }));
         } catch (e) {