persist panel sizes for email and automation screens, fix session title from prompt prefix

- switch email and automation screens from WorkspaceLayout to WorkspaceView + useWorkspacesState
- add promptPrefix prop to WorkspaceView, thread into WorkspaceContext
- automation dynamically adds/removes chat panel while preserving persisted sizes
- use displayText for session title so prompt prefix doesn't leak into titles
- fix email context filter to match screens/email workspace key

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/workspaces/officerdev/src/apps/Chat/ChatHeader.tsx

@@ -22,7 +22,7 @@ function formatModel(model: string): string {
 
 export const ChatHeader = () => {
   const { workspaceId } = useWorkspace();
-  const contextFilter = workspaceId === 'email'
+  const contextFilter = workspaceId === 'email' || workspaceId === 'screens/email'
     ? { context: 'email' as const }
     : workspaceId?.startsWith('proj-layout-')
       ? { context: 'project' as const, contextId: workspaceId.replace('proj-layout-', '') }

src/workspaces/officerdev/src/apps/Chat/ChatPanelWrapper.tsx

@@ -48,7 +48,7 @@ export const ChatPanelWrapper = () => {
   const hostRoot = root === '~' || root === 'officer.dev';
   const sandboxed = !hostRoot;
 
-  const chatContext = workspaceId === 'email'
+  const chatContext = workspaceId === 'email' || workspaceId === 'screens/email'
     ? { context: 'email' as const }
     : workspaceId?.startsWith('proj-layout-')
       ? { context: 'project' as const, contextId: workspaceId.replace('proj-layout-', '') }

src/workspaces/officerdev/src/components/Workspace/WorkspaceView.tsx

@@ -17,6 +17,7 @@ type WorkspaceViewProps = {
   root?: string;
   initialFilePath?: string;
   defaultFileSort?: DefaultFileSort;
+  promptPrefix?: string;
   components?: PanelComponents;
   ephemeral?: EphemeralPanels | null;
   mobilePanelId?: string;
@@ -25,7 +26,7 @@ type WorkspaceViewProps = {
 
 const noop = () => {};
 
-export const WorkspaceView = ({ workspace, locked, cwd = '~', root, initialFilePath, defaultFileSort, components, ephemeral, mobilePanelId, onMobilePanelChange }: WorkspaceViewProps) => {
+export const WorkspaceView = ({ workspace, locked, cwd = '~', root, initialFilePath, defaultFileSort, promptPrefix, components, ephemeral, mobilePanelId, onMobilePanelChange }: WorkspaceViewProps) => {
   const { registry } = useAppRegistry();
   const isMobile = useIsMobile();
 
@@ -147,6 +148,7 @@ export const WorkspaceView = ({ workspace, locked, cwd = '~', root, initialFileP
         root,
         initialFilePath,
         defaultFileSort,
+        promptPrefix,
         swapSourceId,
         setSwapSourceId,
         onSwap: handleSwap,

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

@@ -293,6 +293,7 @@ export function usePiChat(initialSessionId?: string, initialModel?: string | nul
     send({
       type: 'chat',
       prompt: text,
+      ...(displayText ? { displayText } : {}),
       sessionId: sessionIdRef.current,
       ...(selectedModel ? { model: selectedModel } : {}),
       ...(cwdParam?.path ? { cwd: cwdParam.path } : {}),