refactor(desktop): move project scope into a dependency-light store module

Profile and gateway-switch stores need to reset the scope synchronously;
importing store/projects from them would close an import cycle.

apps/desktop/src/app/chat/sidebar/chat-sidebar.integration.test.tsx

@@ -10,7 +10,8 @@ import { registry } from '@/contrib/registry'
 import { $connectionsRegistry } from '@/store/connection-registry-state'
 import { $sidebarMessagingOpenIds, setSidebarAgentsGrouped, setSidebarGrouping } from '@/store/layout'
 import { $activeGatewayProfile, $profiles, setShowAllProfiles } from '@/store/profile'
-import { $projectScope, $projectTree, ALL_PROJECTS } from '@/store/projects'
+import { $projectScope, ALL_PROJECTS } from '@/store/project-scope'
+import { $projectTree } from '@/store/projects'
 import {
   $currentCwd,
   $messagingSessions,

apps/desktop/src/app/chat/sidebar/index.tsx

@@ -86,18 +86,16 @@ import {
   sidebarProfileForScope
 } from '@/store/profile'
 import { $profileRailVisible } from '@/store/profile-rail-prefs'
+import { $projectScope, ALL_PROJECTS, exitProjectScope } from '@/store/project-scope'
 import {
   $activeProjectId,
   $newProjectDropPlacement,
   $projectOwnerBySessionId,
   $projects,
-  $projectScope,
   $projectTree,
   $projectTreeLoading,
   $reposScanning,
-  ALL_PROJECTS,
   enterProject,
-  exitProjectScope,
   followEnteredProjectCwd,
   openProjectCreate,
   refreshProjects,

apps/desktop/src/app/session/hooks/default-new-session.test.tsx

@@ -15,7 +15,7 @@ import {
   ensureGatewayProfile,
   resolveNewChatOwnerRoute
 } from '@/store/profile'
-import { $projectScope, ALL_PROJECTS } from '@/store/projects'
+import { $projectScope, ALL_PROJECTS } from '@/store/project-scope'
 import {
   $activeSessionId,
   $sessions,

apps/desktop/src/app/session/hooks/use-session-actions.test.tsx

@@ -33,7 +33,8 @@ import {
   ensureGatewayAgent,
   ensureGatewayProfile
 } from '@/store/profile'
-import { $projectScope, $projectTree, ALL_PROJECTS } from '@/store/projects'
+import { $projectScope, ALL_PROJECTS } from '@/store/project-scope'
+import { $projectTree } from '@/store/projects'
 import {
   $activeSessionId,
   $activeSessionStoredIdRotation,

apps/desktop/src/app/session/hooks/use-session-actions/index.ts

@@ -55,7 +55,8 @@ import {
   normalizeProfileKey,
   resolveNewChatOwnerRoute
 } from '@/store/profile'
-import { $projectScope, resolveNewSessionCwd } from '@/store/projects'
+import { $projectScope } from '@/store/project-scope'
+import { resolveNewSessionCwd } from '@/store/projects'
 import { receiveApprovalRequest, replayPendingApproval } from '@/store/prompts'
 import { clearStoredTranscriptReadOnly, markStoredTranscriptReadOnly } from '@/store/read-only-transcript'
 import {

apps/desktop/src/app/session/new-session-route.ts

@@ -10,7 +10,7 @@ import {
   ensureGatewayProfile,
   pinLegacyNewChatProfile
 } from '@/store/profile'
-import { $projectScope, ALL_PROJECTS } from '@/store/projects'
+import { $projectScope, ALL_PROJECTS } from '@/store/project-scope'
 import {
   isPeerInstanceWindow,
   isProfilePinnedWindow,

apps/desktop/src/app/session/workspace-session-target.test.ts

@@ -1,7 +1,8 @@
 import { afterEach, describe, expect, it, vi } from 'vitest'
 
 import { $activeGatewayProfile, $newChatProfile } from '@/store/profile'
-import { $projectScope, $projectTree, ALL_PROJECTS } from '@/store/projects'
+import { $projectScope, ALL_PROJECTS } from '@/store/project-scope'
+import { $projectTree } from '@/store/projects'
 import {
   $currentBranch,
   $currentCwd,

apps/desktop/src/store/coding-status.ts

@@ -3,14 +3,8 @@ import { atom, computed, type ReadableAtom } from 'nanostores'
 import type { HermesGitWorktree, HermesRepoStatus } from '@/global'
 import { desktopGit } from '@/lib/desktop-git'
 
-import {
-  $projectScope,
-  $projectTree,
-  $worktreeDialog,
-  $worktreeRefreshToken,
-  ALL_PROJECTS,
-  projectRootCwd
-} from './projects'
+import { $projectScope, ALL_PROJECTS } from './project-scope'
+import { $projectTree, $worktreeDialog, $worktreeRefreshToken, projectRootCwd } from './projects'
 import {
   $busy,
   $currentCwd,

apps/desktop/src/store/project-scope.ts

@@ -0,0 +1,26 @@
+import { persistentAtom } from '@/lib/persisted'
+
+// ── Project scope (the "you're inside a project" view, mirroring profile scope)─
+// The sidebar's grouped view is a project switcher: ALL_PROJECTS shows the
+// project overview (a list you drill into), and a concrete id means you've
+// "entered" that project so only its worktrees/branches/sessions show. This is
+// pure view state (localStorage), distinct from the durable active-project
+// pointer in projects.db — though entering a project also makes it active so new
+// chats land there, exactly as selecting a profile does.
+//
+// Project ids belong to ONE backend's projects.db, so switching profile or
+// connection must leave the scope (store/profile, store/gateway-switch). It lives
+// in this dependency-light module so those stores can reset it synchronously,
+// before the fresh draft resolves its cwd from it.
+export const ALL_PROJECTS = '__all_projects__'
+
+const PROJECT_SCOPE_KEY = 'hermes.desktop.projectScope'
+
+export const $projectScope = persistentAtom<string>(PROJECT_SCOPE_KEY, ALL_PROJECTS, {
+  decode: raw => raw || ALL_PROJECTS,
+  encode: value => value || ALL_PROJECTS
+})
+
+export function exitProjectScope(): void {
+  $projectScope.set(ALL_PROJECTS)
+}

apps/desktop/src/store/projects.test.ts

@@ -7,18 +7,16 @@ import { $activeGatewayProfile, $profileScope, ALL_PROFILES, setShowAllProfiles
 import { $currentCwd, $selectedStoredSessionId, $sessions, applyConfiguredDefaultProjectDir } from '@/store/session'
 import type { ProjectInfo } from '@/types/hermes'
 
+import { $projectScope, ALL_PROJECTS, exitProjectScope } from './project-scope'
 import {
   $activeProjectId,
   $projects,
-  $projectScope,
   $projectsRpcAvailable,
   $projectTree,
   addProjectFolder,
-  ALL_PROJECTS,
   createProject,
   deleteProject,
   enterProject,
-  exitProjectScope,
   fetchProjectSessions,
   openProjectCreate,
   pickProjectFolder,

apps/desktop/src/store/projects.ts

@@ -15,7 +15,6 @@ import { desktopDefaultCwd, isDesktopFsRemoteMode, selectDesktopPaths, writeDesk
 import { desktopGit } from '@/lib/desktop-git'
 import { isMissingRestEndpoint, isMissingRpcMethod } from '@/lib/gateway-rpc'
 import { isUnderPath } from '@/lib/path-compare'
-import { persistentAtom } from '@/lib/persisted'
 import { revealFile } from '@/store/file-actions'
 import { $gateway, activeGateway, ensureActiveGatewayOpen } from '@/store/gateway'
 import { $sidebarShowAllSessions, setSidebarAgentsGrouped } from '@/store/layout'
@@ -27,6 +26,7 @@ import {
   normalizeProfileKey,
   requestFreshSession
 } from '@/store/profile'
+import { $projectScope, ALL_PROJECTS } from '@/store/project-scope'
 import {
   $currentCwd,
   $selectedStoredSessionId,
@@ -80,22 +80,6 @@ function projectsStaleBackendError(): Error {
 // True while the disk scan is in flight (drives the "finding repos" hint).
 export const $reposScanning = atom(false)
 
-// ── Project scope (the "you're inside a project" view, mirroring profile scope)─
-// The sidebar's grouped view is a project switcher: ALL_PROJECTS shows the
-// project overview (a list you drill into), and a concrete id means you've
-// "entered" that project so only its worktrees/branches/sessions show. This is
-// pure view state (localStorage), distinct from the durable active-project
-// pointer in projects.db — though entering a project also makes it active so new
-// chats land there, exactly as selecting a profile does.
-export const ALL_PROJECTS = '__all_projects__'
-
-const PROJECT_SCOPE_KEY = 'hermes.desktop.projectScope'
-
-export const $projectScope = persistentAtom<string>(PROJECT_SCOPE_KEY, ALL_PROJECTS, {
-  decode: raw => raw || ALL_PROJECTS,
-  encode: value => value || ALL_PROJECTS
-})
-
 // Enter a project: scope the sidebar to it and make it the active project
 // (best-effort — the durable pointer is nice-to-have, the view scope is the
 // point). Never opens a session.
@@ -110,10 +94,6 @@ export function enterProject(id: string): void {
   }
 }
 
-export function exitProjectScope(): void {
-  $projectScope.set(ALL_PROJECTS)
-}
-
 // A project's working root: its primary folder, else the first repo that has
 // one. Empty for the path-less Home bucket. (The sidebar's `projectTreeCwd` is
 // the same rule over the same tree — this is the store-side copy so the store