fix: refresh session share state after unsharing

Updates live session state after share and unshare actions
Preserves session directory metadata while applying share changes
Adds regression coverage for unshare and sanitized share responses

packages/ui/src/sync/session-actions.ts

@@ -9,12 +9,12 @@ import { useSessionUIStore } from "./session-ui-store"
 import { useInputStore } from "./input-store"
 import type { ChildStoreManager } from "./child-store"
 import { opencodeClient } from "@/lib/opencode/client"
-import { useGlobalSessionsStore } from "@/stores/useGlobalSessionsStore"
+import { mergeSessionDirectoryMetadata, useGlobalSessionsStore } from "@/stores/useGlobalSessionsStore"
 import { useConfigStore } from "@/stores/useConfigStore"
 import { registerSessionDirectory } from "./sync-refs"
 import { isSyntheticPart } from "@/lib/messages/synthetic"
 import { materializeSessionSnapshots } from "./materialization"
-import { stripMessageDiffSnapshots } from "./sanitize"
+import { stripMessageDiffSnapshots, stripSessionDiffSnapshots } from "./sanitize"
 import { sessionEvents } from "@/lib/sessionEvents"
 import {
   getOriginalSessionID,
@@ -127,6 +127,27 @@ function dirStoreForSession(sessionId: string): { store: DirectoryStoreApi; dire
   return { store: dirStore(), directory: dir() }
 }
 
+function updateLiveSession(session: Session, directory?: string): void {
+  const stores = _childStores
+  if (!stores) return
+
+  const candidates = directory
+    ? [[directory, stores.getChild(directory)] as const]
+    : stores.children
+
+  for (const [, store] of candidates) {
+    if (!store) continue
+    const current = store.getState().session
+    const index = current.findIndex((item) => item.id === session.id)
+    if (index === -1) continue
+
+    const next = [...current]
+    next[index] = mergeSessionDirectoryMetadata(session, current[index])
+    store.setState({ session: next })
+    return
+  }
+}
+
 function dir() {
   return _getDirectory() || undefined
 }
@@ -527,16 +548,18 @@ export async function updateSessionTitle(sessionId: string, title: string): Prom
 export async function shareSession(sessionId: string): Promise<Session | null> {
   const sessionDirectory = getSessionDirectory(sessionId)
   const result = await sdk().session.share({ sessionID: sessionId, directory: sessionDirectory })
-  const session = assertSdkData(result, "session.share")
+  const session = stripSessionDiffSnapshots(assertSdkData(result, "session.share"))
   useGlobalSessionsStore.getState().upsertSession(session)
+  updateLiveSession(session, sessionDirectory)
   return session
 }
 
 export async function unshareSession(sessionId: string): Promise<Session | null> {
   const sessionDirectory = getSessionDirectory(sessionId)
   const result = await sdk().session.unshare({ sessionID: sessionId, directory: sessionDirectory })
-  const session = assertSdkData(result, "session.unshare")
+  const session = stripSessionDiffSnapshots(assertSdkData(result, "session.unshare"))
   useGlobalSessionsStore.getState().upsertSession(session)
+  updateLiveSession(session, sessionDirectory)
   return session
 }