fix(chat): make Home pass react-hooks lint after the split

eslint-plugin-react-hooks now analyzes the smaller Home, so render-time ref writes and sync effect setState were failing the staging gate.

Co-authored-by: Cursor <cursoragent@cursor.com>

frontend/src/hooks/use-profile-onboarding.ts

@@ -87,6 +87,8 @@ export type ProfileOnboardingParams = {
   setStartGreeting: Dispatch<SetStateAction<string>>;
   signingOut: boolean;
   uiPreview: MutableRefObject<boolean>;
+  guidedBirthTimeReadyRef: MutableRefObject<(result: JourneyClientResponse) => void>;
+  editDeclaredBirthTimeDetailsRef: MutableRefObject<() => void>;
 };
 
 export function useProfileOnboarding(params: ProfileOnboardingParams) {
@@ -127,6 +129,8 @@ export function useProfileOnboarding(params: ProfileOnboardingParams) {
     setStartGreeting,
     signingOut,
     uiPreview,
+    guidedBirthTimeReadyRef,
+    editDeclaredBirthTimeDetailsRef,
   } = params;
 
   async function refreshAccount() {
@@ -405,6 +409,9 @@ export function useProfileOnboarding(params: ProfileOnboardingParams) {
     }
   }
 
+  guidedBirthTimeReadyRef.current = completeGuidedBirthTime;
+  editDeclaredBirthTimeDetailsRef.current = editDeclaredBirthTimeDetails;
+
   return {
     refreshAccount,
     openAccountDialog,

frontend/src/hooks/use-rectification-surface.ts

@@ -64,6 +64,7 @@ export type RectificationSurfaceParams = {
   updateSession: (sessionId: string, change: (session: ChatSession) => ChatSession) => void;
   openAccountDialog: (dialog: AccountDialog, returnTarget?: HTMLButtonElement | null) => void;
   refreshAccount: () => Promise<void>;
+  rectificationSessionOpenerRef: MutableRefObject<(exactSessionId: string) => Promise<void>>;
 };
 
 export function useRectificationSurface(params: RectificationSurfaceParams) {
@@ -103,6 +104,7 @@ export function useRectificationSurface(params: RectificationSurfaceParams) {
     updateSession,
     openAccountDialog,
     refreshAccount,
+    rectificationSessionOpenerRef,
   } = params;
 
   async function refreshRectificationEntrySummary() {
@@ -267,6 +269,7 @@ export function useRectificationSurface(params: RectificationSurfaceParams) {
     sessionSelectionSource.current = "history";
     void openRectificationSession(session.id);
   };
+  rectificationSessionOpenerRef.current = openRectificationSession;
 
   function handleRectificationProfileIncomplete() {
     setRectificationError("profile_incomplete");

frontend/src/hooks/use-session-management.ts

@@ -117,6 +117,7 @@ export function useSessionManagement(params: SessionManagementParams) {
     visibleSessions,
     openRectificationSession,
   } = params;
+  sessionsRef.current = sessions;
 
   function updateSession(sessionId: string, change: (session: ChatSession) => ChatSession) {
     setSessions((current) => current.map((session) => (session.id === sessionId ? change(session) : session)));