feat: display agent avatar from OpenClaw identity config

Fetch agent identity via agent.identity.get WS method after connect.
Display avatar in message bubbles (replacing Bot icon) and in the
header (replacing the PinchChat logo when an avatar is configured).
Falls back to default icons when no avatar is set.

src/hooks/useGateway.ts

@@ -3,7 +3,7 @@ import { GatewayClient, type JsonPayload } from '../lib/gateway';
 import { genIdempotencyKey } from '../lib/utils';
 import { getStoredCredentials, storeCredentials, clearCredentials } from '../lib/credentials';
 import { isSystemEvent } from '../lib/systemEvent';
-import type { ChatMessage, MessageBlock, ConnectionStatus, Session } from '../types';
+import type { ChatMessage, MessageBlock, ConnectionStatus, Session, AgentIdentity } from '../types';
 
 interface ChatPayloadMessage {
   content?: string | Array<{ type: string; text?: string }>;
@@ -43,6 +43,7 @@ export function useGateway() {
   const currentRunIdRef = useRef<string | null>(null);
   const [activeSessions, setActiveSessions] = useState<Set<string>>(new Set());
   const [unreadSessions, setUnreadSessions] = useState<Set<string>>(new Set());
+  const [agentIdentity, setAgentIdentity] = useState<AgentIdentity | null>(null);
 
   const handleAgentEvent = useCallback((payload: JsonPayload) => {
     if (payload?.stream !== 'tool') return;
@@ -94,6 +95,22 @@ export function useGateway() {
     localStorage.setItem('pinchchat-deleted-sessions', JSON.stringify([...deleted]));
   }, [getDeletedSessions]);
 
+  const loadAgentIdentity = useCallback(async () => {
+    try {
+      const res = await clientRef.current?.send('agent.identity.get', {});
+      if (res) {
+        setAgentIdentity({
+          name: res.name as string | undefined,
+          emoji: res.emoji as string | undefined,
+          avatar: res.avatar as string | undefined,
+          agentId: res.agentId as string | undefined,
+        });
+      }
+    } catch {
+      // Silently ignore — identity is optional
+    }
+  }, []);
+
   const loadSessions = useCallback(async () => {
     try {
       const res = await clientRef.current?.send('sessions.list', {});
@@ -228,6 +245,7 @@ export function useGateway() {
         isConnectingRef.current = false;
         storeCredentials(wsUrl, token);
         loadSessions();
+        loadAgentIdentity();
         loadHistory(activeSessionRef.current);
       } else if (s === 'disconnected' && !client.isConnected) {
         // If we never connected successfully, this is an auth/connection error
@@ -345,7 +363,7 @@ export function useGateway() {
     isConnectingRef.current = true;
     setConnectError(null);
     client.connect();
-  }, [handleAgentEvent, loadHistory, loadSessions]);
+  }, [handleAgentEvent, loadHistory, loadSessions, loadAgentIdentity]);
 
   // On mount: try stored credentials
   const initRef = useRef(false);
@@ -461,6 +479,6 @@ export function useGateway() {
   return {
     status, messages, sessions: enrichedSessions, activeSession, isGenerating, isLoadingHistory,
     sendMessage, abort, switchSession, loadSessions, deleteSession,
-    authenticated, login, logout, connectError, isConnecting,
+    authenticated, login, logout, connectError, isConnecting, agentIdentity,
   };
 }