[FresnelR27]

Problem

My Station always selected a workspace by chat session, so chats in the same working directory had separate station tabs.

Solution

• Add Settings → General → Workstation sharing in its own container. Working directory is the default; Chat tab keeps a workspace per session ID.
• Resolve one workspace identity for tabs, saved tab data, ordering, selection, recents, editor caches, terminal selection, delayed opens, and target-session file context. Unknown/non-local paths and guest imports remain session-scoped; when no chat is selected, the Global workspace is used.
• Persist directory workspaces alongside existing session workspaces. Switching policies preserves each policy’s separate configuration; deleting a chat preserves its shared directory workspace and clears deleted agent terminal references.
• Use Workstation sharing only for the new sharing settings row and its localized copy. Preserve existing My Station labels elsewhere, comments, historical notes, action/search aliases, and test captions.

The final change covers 27 files focused on the sharing resolver, tab persistence, terminal selection, settings integration, localization, and supporting tests/audits.

Potential risks

• Each sharing policy has a separate saved configuration; a newly selected workspace starts empty. Existing per-session layouts remain accessible through Chat tab. The additive v4 directory partition/manifest field is necessary for directory persistence; existing v4 data remains readable. Select Chat tab to roll back behavior without deleting saved layouts. No database, IPC, dependency, or lockfile changes.
• This does not yet make every formatting detail follow the policy. Panel sizes/collapse remain generally shared, and some temporary view state is keyed by tab ID alone. The resolver uses the session’s saved repoPath, not a separate worktreePath; it normalizes separators/trailing slashes but does not resolve symlinks or case aliases.
• Live Browser/Terminal resources keep their existing global ownership. Explicitly closing one removes its references across workspaces. Persistent workspace storage grows with configured workspaces; large collections and live cross-window lifecycle have not been measured.
• No live Tauri screenshots, visual theme/viewport checks, rendered E2E, or idle/hidden/restart/detached-window CPU/RSS checks were run because computer control is not authorized.

Verification

Scope follow-up

• Removed the broad naming sweep at the author's request; all 184 files from that sweep match the pre-feature base exactly
• Re-ran the exact targeted test command below: 54 files / 417 tests passed
• pnpm run typecheck:fast — passed
• git diff --check — passed
• Commit hooks ran: lint-staged and tsgo passed; scoped Clippy reported issues outside staged Rust files and allowed the commit, so this is not a clean Clippy result
• Kept the previous CI promise-handling fix; no sharing behavior changed in this follow-up

CI follow-up

The initial type-aware lint run identified one new no-floating-promises finding in the Workstation sharing settings adapter. The adapter now handles rejected saves with the shared logger, preserving its synchronous control interface. No lint baseline or suppression was changed.

• pnpm exec vitest run --config config/vitest.config.ts src/store/workstation/tabs src/store/settings/settingsWatcherEcho.test.ts — 143 tests across 13 files passed
• pnpm test:typed-lint — all 6 lint-harness tests passed
• NODE_OPTIONS=--max-old-space-size=6144 pnpm check:typed-lint — passed: 1,102 existing findings, 0 new or increased findings
• pnpm run typecheck:fast — passed
• pnpm exec prettier --check src/store/workstation/tabs/workspaceScope.ts and pnpm exec eslint --max-warnings 0 src/store/workstation/tabs/workspaceScope.ts — passed
• Commit hooks explicitly enabled with git -c core.hooksPath=.husky commit; lint-staged (Oxlint, ESLint, Prettier) and tsgo passed
• git diff --check origin/develop...HEAD — passed

Original feature verification

On the isolated branch based on develop:

• Targeted tests: 54 files / 417 tests passed (exact command below)
• pnpm run typecheck:fast — passed. Earlier shared-checkout errors were not present on the isolated branch
• pnpm exec eslint $(git diff --name-only --diff-filter=ACM origin/develop -- '*.ts' '*.tsx') --max-warnings 0 — passed after staging the complete change
• git diff --cached --check — passed
• Reviewed the full scope and added lines for unrelated changes, secrets, personal paths, artifacts, and lockfile churn
• Localization keys are preserved; new sharing-row strings exist in all 13 locales. Existing labels elsewhere are restored
• No Rust files remain in the final PR diff
• Architecture layers 1–10 reviewed; runtime performance verdict remains blocked by the unexecuted live lifecycle checks

Exact targeted test command

pnpm test \
  src/config/mainAppPaths.test.ts \
  src/config/routes.test.ts \
  src/config/settingsSchema/__tests__/chatPanelPosition.test.ts \
  src/engines/ChatPanel/ChatPanelTabContextMenu.test.ts \
  src/engines/ChatPanel/blocks/ToolCallBlock/cards/OrgtrackEnvelopeCard.test.ts \
  src/engines/ChatPanel/components/SessionHeaderActionsMenu.test.ts \
  src/hooks/navigation/useAppNavigation.test.ts \
  src/hooks/navigation/useRoutineResultNavigation.test.ts \
  src/modules/MainApp/WorkManagement/GitHubWorkItemControls.test.ts \
  src/modules/ProjectManager/Projects/components/ProjectsPageHeader/ProjectsPageHeader.test.ts \
  src/modules/ProjectManager/WorkItems/components/WorkItemsPageHeader/__tests__/WorkItemsHeaderContent.test.ts \
  src/modules/WorkStation/AppShell/AgentStationTopHeader.test.ts \
  src/modules/WorkStation/AppShell/AppShell.caption.test.ts \
  src/modules/WorkStation/AppShell/PinnedWorkbenchChrome.test.ts \
  src/modules/WorkStation/AppShell/WorkstationTabHeader.test.ts \
  src/modules/WorkStation/AppShell/hooks/useAppShellSimulatorPanelSync.test.ts \
  src/modules/WorkStation/AppShell/statusBarVisibility.test.ts \
  src/modules/WorkStation/AppShell/useWorkstationTrailingSlot.visibility.test.ts \
  src/modules/WorkStation/shared/SessionReplay/useSimulatorReplaySidebar.test.ts \
  src/modules/WorkStation/shared/StationModePill/index.test.ts \
  src/modules/WorkStation/shared/TabBar/components/SortableTab/__tests__/index.test.ts \
  src/modules/shared/layouts/FocusedChatWorkstationRail/FocusedChatWorkstationRail.test.ts \
  src/scaffold/NavigationSidebar/connectors/WorkstationSidebarConnector/cloudSessionNativeMenuItems.test.ts \
  src/store/chatPanel/__tests__/chatPanelTabPlacementAtom.test.ts \
  src/store/session/__tests__/viewAtom.test.ts \
  src/store/workstation/stationWindowAtoms.test.ts \
  src/store/workstation/tabRegistry/atoms.test.ts \
  src/store/workstation/tabs/__tests__/workspaceScope.test.ts \
  src/config/settingsSearch.test.ts \
  src/modules/shared/layouts/blocks/SettingsSearchDropdown/settingsSearchIndex.test.ts \
  src/features/Onboarding/OnboardingModal.test.ts \
  src/store/workstation/tabs \
  src/store/workstation/codeEditor/terminal/__tests__/terminalTargetAtom.test.ts \
  src/services/context/collectors/AdeContextCollector.test.ts \
  src/hooks/tabHost/useWorkStationTabs \
  src/config/settingsSchema

Conflict-resolution follow-up

• Merged latest develop (13f5caa4274ab016e12be155e6b0c6ca3a638c3c) into the PR head and resolved the sole conflict in GeneralSection.tsx by preserving both the Workstation sharing atom and the license-modal state
• pnpm test src/store/workstation/tabs src/config/settingsSchema src/config/settingsSearch.test.ts src/modules/shared/layouts/blocks/SettingsSearchDropdown/settingsSearchIndex.test.ts — 23 files / 184 tests passed
• pnpm run typecheck:fast — passed after refreshing the isolated worktree from the committed lockfile with pnpm install --frozen-lockfile
• pnpm exec prettier --check src/modules/MainApp/Settings/sections/GeneralSection.tsx — passed
• pnpm exec eslint --max-warnings 0 src/modules/MainApp/Settings/sections/GeneralSection.tsx — passed
• git diff --check and git diff --cached --check — passed before the merge commit
• Merge-commit hooks: lint-staged and staged-file TypeScript checks passed; scoped Clippy reported issues only in inherited Rust files and did not gate the merge commit
• GitHub checks passed: PR contract, AI attribution, queue authority, dependency boundaries, typed lint, frontend typecheck/lint/tests, secret scan, and JavaScript/TypeScript CodeQL. The first CodeQL attempt failed during SARIF upload with no annotations; the failed job was rerun and passed