better chat ui

src/apps/officer-web/Screens/Dashboard/ChatHistory/index.tsx

@@ -22,7 +22,7 @@ export const SessionListPage = ({ isNew }: SessionListPageProps) => {
 
   useEffect(() => {
     if (isNew) {
-      setSelected({ id: 'new' });
+      setSelected({ id: `new:${Date.now()}` });
       return;
     }
     if (!sessionId) return;

src/servers/api/pi/types.ts

@@ -152,3 +152,92 @@ export type ModelInfo = {
   reasoning?: boolean;
   images?: boolean;
 };
+
+// ── Pi-native JSONL types ──────────────────────────────────────────────
+
+export type JnlSessionHeader = {
+  type: 'session';
+  version: 3;
+  id: string;
+  timestamp: string;
+  cwd: string;
+};
+
+export type JnlEntryBase = {
+  type: string;
+  id: string;
+  parentId?: string;
+  timestamp: string;
+};
+
+export type JnlTextContent = {
+  type: 'text';
+  text: string;
+};
+
+export type JnlToolCall = {
+  type: 'tool_use';
+  id: string;
+  name: string;
+  input: Record<string, unknown>;
+};
+
+export type JnlUserMessage = JnlEntryBase & {
+  type: 'message';
+  message: {
+    role: 'user';
+    content: string;
+  };
+};
+
+export type JnlAssistantMessage = JnlEntryBase & {
+  type: 'message';
+  message: {
+    role: 'assistant';
+    content: Array<JnlTextContent | JnlToolCall>;
+  };
+};
+
+export type JnlToolResultMessage = JnlEntryBase & {
+  type: 'message';
+  message: {
+    role: 'toolResult';
+    toolCallId: string;
+    toolName: string;
+    content: Array<JnlTextContent>;
+    isError?: boolean;
+  };
+};
+
+export type JnlMessageEntry = JnlUserMessage | JnlAssistantMessage | JnlToolResultMessage;
+
+export type JnlSessionInfoEntry = JnlEntryBase & {
+  type: 'session_info';
+  name: string;
+  officer?: {
+    cost: MessageCost;
+    model: string;
+    groupSlug?: string | null;
+    messageCount: number;
+    createdAt: number;
+    updatedAt: number;
+  };
+};
+
+export type JnlEntry = JnlMessageEntry | JnlSessionInfoEntry;
+
+// ── Session Index ──────────────────────────────────────────────────────
+
+export type SessionIndexEntry = {
+  file: string;
+  title: string;
+  model: string;
+  cwd: string;
+  createdAt: number;
+  updatedAt: number;
+  messageCount: number;
+  cost: MessageCost;
+  groupSlug?: string | null;
+};
+
+export type SessionIndex = Record<string, SessionIndexEntry>;

src/workspaces/officerdev/src/apps/ChatHistory/ChatDetailPanel.tsx

@@ -1,4 +1,3 @@
-import { useEffect } from 'react';
 import { useLocation } from 'react-router';
 import { Trash2 } from 'lucide-react';
 import { usePanelChannel } from 'hooks/usePanelChannel';
@@ -83,6 +82,7 @@ function SessionChat({ sessionId, model }: SessionChatProps) {
         }}
       />
       <EmbeddableChat
+        chat={chat}
         sessionId={sessionId}
         initialModel={model ?? undefined}
         className="flex-1 min-h-0"
@@ -94,15 +94,8 @@ function SessionChat({ sessionId, model }: SessionChatProps) {
 function NewChat() {
   const location = useLocation();
   const locationState = location.state as ChatLocationState;
-  const [, setSelected] = usePanelChannel<SelectedSession>(CHANNEL, null);
 
-  const chat = usePiChat();
-
-  useEffect(() => {
-    if (chat.sessionId) {
-      setSelected({ id: chat.sessionId, model: chat.model });
-    }
-  }, [chat.sessionId]);
+  const chat = usePiChat(undefined, locationState?.model);
 
   const initialMessage = locationState?.initialMessage
     ? {
@@ -122,6 +115,7 @@ function NewChat() {
         onDelete={undefined}
       />
       <EmbeddableChat
+        chat={chat}
         sessionId={undefined}
         initialModel={locationState?.model ?? undefined}
         initialMessage={initialMessage}
@@ -133,16 +127,6 @@ function NewChat() {
   );
 }
 
-function NewChatPanel() {
-  const [selected] = usePanelChannel<SelectedSession>(CHANNEL, null);
-
-  if (selected && selected.id !== 'new') {
-    return <SessionChat key={selected.id} sessionId={selected.id} model={selected.model} />;
-  }
-
-  return <NewChat key="new" />;
-}
-
 export const ChatDetailPanel = () => {
   const [selected] = usePanelChannel<SelectedSession>(CHANNEL, null);
 
@@ -154,8 +138,8 @@ export const ChatDetailPanel = () => {
     );
   }
 
-  if (selected.id === 'new') {
-    return <NewChatPanel key="new" />;
+  if (selected.id.startsWith('new')) {
+    return <NewChat key={selected.id} />;
   }
 
   return <SessionChat key={selected.id} sessionId={selected.id} model={selected.model} />;

src/workspaces/officerdev/src/apps/ChatHistory/SessionList.tsx

@@ -132,7 +132,7 @@ export const SessionList = () => {
           </button>
           <button
             onClick={() => {
-              setSelected({ id: 'new' });
+              setSelected({ id: `new:${Date.now()}` });
               window.history.replaceState(null, '', '/chat/new');
             }}
             className="flex items-center gap-1.5 rounded-md bg-duck-teal hover:bg-duck-teal/90 text-duck-yellow cursor-pointer h-7 px-3 text-xs font-medium"

src/workspaces/officerdev/src/hooks/usePiChat.ts

@@ -46,7 +46,7 @@ export function usePiChat(initialSessionId?: string, initialModel?: string | nul
   const sessionIdRef = useRef<string | null>(initialSessionId ?? null);
   const saveTimerRef = useRef<number | null>(null);
 
-  const { getSession, saveMessages } = useChatSessions();
+  const { getSession, saveMessages, invalidate: invalidateSessions } = useChatSessions();
 
   const token = localStorage.getItem('BEARER_TOKEN');
   const protocol = window.location.protocol === 'https:' ? 'wss:' : 'ws:';
@@ -124,6 +124,7 @@ export function usePiChat(initialSessionId?: string, initialModel?: string | nul
           },
         ]);
         setIsGenerating(false);
+        invalidateSessions();
         break;
 
       case 'sync:messages':
@@ -148,6 +149,7 @@ export function usePiChat(initialSessionId?: string, initialModel?: string | nul
           return { role: 'assistant', text: '' }; // Fallback
         });
         setMessages(chatMessages);
+        if (chatMessages.length > 0) setHasStarted(true);
         setIsGenerating(msg.isGenerating);
         if (msg.streamingText) {
           streamingRef.current = msg.streamingText;
@@ -180,7 +182,10 @@ export function usePiChat(initialSessionId?: string, initialModel?: string | nul
             sessionIdRef.current = sid;
             setSessionId(sid);
           }
-          if (msgs.length > 0) setMessages(msgs);
+          if (msgs.length > 0) {
+            setMessages(msgs);
+            setHasStarted(true);
+          }
         })
         .catch(() => {});
       return;
@@ -208,6 +213,7 @@ export function usePiChat(initialSessionId?: string, initialModel?: string | nul
             return { role: 'assistant', text: '' }; // Fallback
           });
           setMessages(chatMessages);
+          setHasStarted(true);
         }
       })
       .catch(() => {});

src/workspaces/state/src/useChatSessions.ts

@@ -39,6 +39,10 @@ export function useChatSessions() {
     return client.get<{ results: SessionEntry[] }>(`/pi/sessions/search?q=${encodeURIComponent(query)}`);
   }
 
+  function invalidate() {
+    queryClient.invalidateQueries({ queryKey: ['PI_SESSIONS'] });
+  }
+
   return {
     sessions,
     getSession,
@@ -46,6 +50,7 @@ export function useChatSessions() {
     renameSession,
     deleteSession,
     searchSessions,
+    invalidate,
   };
 }