fix: keep tray session switches in sync

Open tray sessions from the correct directory
Allow remote instances to update the tray
Update the active project when switching sessions

packages/electron/main.mjs

@@ -4004,6 +4004,7 @@ const COMMANDS_SAFE_FOR_REMOTE = new Set([
   'desktop_get_app_version',
   'desktop_get_lan_address',
   'desktop_capture_page_rect',
+  'desktop_tray_update',
 ]);
 
 ipcMain.handle('openchamber:invoke', async (event, command, args) => {

packages/electron/tray.mjs

@@ -180,13 +180,13 @@ export const createTrayController = ({ idleIconPath, unseenIconPath, breathIconP
               { type: 'separator' },
               { label: 'Deny', click: () => onAction({ type: 'respond-permission', sessionId: approval.sessionId, id: approval.id, response: 'reject' }) },
               { type: 'separator' },
-              { label: 'Open in app', click: () => onAction({ type: 'focus-session', sessionId: approval.sessionId }) },
+              { label: 'Open in app', click: () => onAction({ type: 'focus-session', sessionId: approval.sessionId, directory: approval.directory || '' }) },
             ],
           };
         }
         return {
           label: approvalLabel(approval),
-          click: () => onAction({ type: 'focus-session', sessionId: approval.sessionId }),
+          click: () => onAction({ type: 'focus-session', sessionId: approval.sessionId, directory: approval.directory || '' }),
         };
       };
       for (const approval of approvals.slice(0, MAX_APPROVALS)) {
@@ -209,7 +209,7 @@ export const createTrayController = ({ idleIconPath, unseenIconPath, breathIconP
       icon: statusIcons[statusIconKey(session)] || statusIcons.blank,
       // Secondary smaller line (macOS): project · branch.
       ...(session.subtitle ? { sublabel: truncate(session.subtitle, 48) } : {}),
-      click: () => onAction({ type: 'focus-session', sessionId: session.id }),
+      click: () => onAction({ type: 'focus-session', sessionId: session.id, directory: session.directory || '' }),
     });
 
     if (sessions.length > 0) {

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

@@ -442,6 +442,14 @@ export const useSessionUIStore = create<SessionUIState>()((set, get) => ({
     )
     const fallbackDir = opencodeClient.getDirectory() ?? directoryState.currentDirectory ?? null
     const resolvedDir = (directoryHint ? normalizePath(directoryHint) : null) ?? sessionDir ?? fallbackDir
+    const projectsState = useProjectsStore.getState()
+    const sessionProject = resolvedDir
+      ? resolveProjectForSessionDirectory(
+        projectsState.projects,
+        get().availableWorktreesByProject,
+        resolvedDir,
+      )
+      : null
 
     // Set the directory together with the session id so chat hooks read the
     // same child store that send/SSE events will update during startup races.
@@ -452,6 +460,9 @@ export const useSessionUIStore = create<SessionUIState>()((set, get) => ({
       if (resolvedDir && directoryState.currentDirectory !== resolvedDir) {
         directoryState.setDirectory(resolvedDir, { showOverlay: false })
       }
+      if (sessionProject && projectsState.activeProjectId !== sessionProject.id) {
+        projectsState.setActiveProjectIdOnly(sessionProject.id)
+      }
       opencodeClient.setDirectory(resolvedDir ?? undefined)
     } catch (e) {
       console.warn("Failed to set OpenCode directory for session switch:", e)