feat(tasks): add toggle for internal tasks in sidebar for staff

[posthog]

Summary

Adds a dev-only toggle to the sidebar's task filter menu for showing internal tasks. Mirrors PostHog/posthog#56943, which adds the equivalent toggle to the main tasks page in the PostHog app — making PostHog Code usable as a debug UI for internal task runs locally.

The backend (products/tasks/backend/api.py) already gates internal=true behind settings.DEBUG, so this is a no-op in production builds even if import.meta.env.DEV somehow evaluated true.

Changes

• Task type: add optional internal?: boolean field.
• posthogClient.getTasks: forward an optional internal query param.
• useTasks hook: accept showInternal and pass through to the API + query key.
• sidebarStore: persist showInternal flag alongside the other filter state.
• useSidebarData: when showInternal is on, bypass the local-workspace filter (internal tasks are server-side and won't have a workspace).
• TaskListView's TaskFilterMenu: new "Internal tasks" radio group (Hide/Show), rendered only when import.meta.env.DEV, sitting next to the existing dev-only "Show all users" toggle.

Test plan

• In dev, open the sidebar filter menu — confirm the "Internal tasks" Hide/Show radio group appears under the "Show" group.
• Toggle to "Show" — task list refetches with internal=true and only internal tasks render (created by the agent service / etc.).
• Toggle back to "Hide" — only user-facing tasks render again.
• Reload the app — selection persists via sidebar-storage.
• In a production build, confirm the toggle does not render.

---

Created with PostHog Code

[greptile-apps]

Prompt To Fix All With AI

Fix the following 2 code review issues. Work through them one at a time, proposing concise fixes.

---

### Issue 1 of 2
apps/code/src/renderer/features/tasks/hooks/useTasks.ts:39-40
**`createdBy` not cleared when fetching internal tasks**

When `showInternal` is `true` but `showAllUsers` is `false`, `createdBy` is still set to `currentUser?.id`. Internal tasks are created by the agent service (not the current user), so the backend receives both `internal=true` and `created_by=<userId>` — and applying both filters together will likely return an empty result set. `createdBy` should be `undefined` whenever `showInternal` is `true`.

```suggestion
  const createdBy = filters?.showAllUsers || filters?.showInternal ? undefined : currentUser?.id;
```

### Issue 2 of 2
apps/code/src/renderer/features/sidebar/components/TaskListView.tsx:199-222
**Toggle visible in production for staff users but silently non-functional**

The existing "Show all users" toggle is gated by `import.meta.env.DEV`, but this new toggle uses `isStaff`. Staff users in production builds will see "Task visibility" in the filter menu; however, the backend only honours `internal=true` when `settings.DEBUG` is enabled, so the toggle silently does nothing in production. Consider aligning the guard with the existing pattern (`import.meta.env.DEV`) or adding an `import.meta.env.DEV` check alongside `isStaff` to avoid showing a non-functional control to production staff.

_{Reviews (1): Last reviewed commit: "show for staff users" | Re-trigger Greptile}

[greptile-apps]

createdBy not cleared when fetching internal tasks

When showInternal is true but showAllUsers is false, createdBy is still set to currentUser?.id. Internal tasks are created by the agent service (not the current user), so the backend receives both internal=true and created_by=<userId> — and applying both filters together will likely return an empty result set. createdBy should be undefined whenever showInternal is true.

Suggested change

	const createdBy = filters?.showAllUsers ? undefined : currentUser?.id;
	const internal = filters?.showInternal ? true : undefined;
	const createdBy = filters?.showAllUsers || filters?.showInternal ? undefined : currentUser?.id;

Prompt To Fix With AI

This is a comment left during a code review.
Path: apps/code/src/renderer/features/tasks/hooks/useTasks.ts
Line: 39-40

Comment:
**`createdBy` not cleared when fetching internal tasks**

When `showInternal` is `true` but `showAllUsers` is `false`, `createdBy` is still set to `currentUser?.id`. Internal tasks are created by the agent service (not the current user), so the backend receives both `internal=true` and `created_by=<userId>` — and applying both filters together will likely return an empty result set. `createdBy` should be `undefined` whenever `showInternal` is `true`.

```suggestion
  const createdBy = filters?.showAllUsers || filters?.showInternal ? undefined : currentUser?.id;
```

How can I resolve this? If you propose a fix, please make it concise.

[greptile-apps]

Toggle visible in production for staff users but silently non-functional

The existing "Show all users" toggle is gated by import.meta.env.DEV, but this new toggle uses isStaff. Staff users in production builds will see "Task visibility" in the filter menu; however, the backend only honours internal=true when settings.DEBUG is enabled, so the toggle silently does nothing in production. Consider aligning the guard with the existing pattern (import.meta.env.DEV) or adding an import.meta.env.DEV check alongside isStaff to avoid showing a non-functional control to production staff.

Prompt To Fix With AI

This is a comment left during a code review.
Path: apps/code/src/renderer/features/sidebar/components/TaskListView.tsx
Line: 199-222

Comment:
**Toggle visible in production for staff users but silently non-functional**

The existing "Show all users" toggle is gated by `import.meta.env.DEV`, but this new toggle uses `isStaff`. Staff users in production builds will see "Task visibility" in the filter menu; however, the backend only honours `internal=true` when `settings.DEBUG` is enabled, so the toggle silently does nothing in production. Consider aligning the guard with the existing pattern (`import.meta.env.DEV`) or adding an `import.meta.env.DEV` check alongside `isStaff` to avoid showing a non-functional control to production staff.

How can I resolve this? If you propose a fix, please make it concise.