feat: Remove signals step to improve conversion

[charlesvien]

Problem

The signals/inbox setup forces users to configure integrations during onboarding, hurting conversion. The inbox already shows a setup pane on first open, so this step is redundant.

Changes

1. Drop signals from onboarding step union and array
2. Make install-cli the final step; complete onboarding straight to task input
3. Update install-cli CTA copy to "Get started" / "Skip & get started"
4. Delete SignalsStep and usePrefetchSignalData (now orphaned)
5. Remove navigateToSetup / hasCompletedSetup branching from OnboardingFlow

How did you test this?

Manually

Publish to changelog?

[charlesvien]

• feat: Polish git step to improve conversion  #2209
• feat: Remove signals step to improve conversion #2208 👈 (View in Graphite)
• fix: Misc UX fixes #2157
• main

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[greptile-apps]

Prompt To Fix All With AI

Fix the following 1 code review issue. Work through them one at a time, proposing concise fixes.

---

### Issue 1 of 1
apps/code/src/renderer/features/onboarding/components/OnboardingFlow.tsx:46
**Lost prefetch for GitHub integration step**

`usePrefetchSignalData` was also eagerly prefetching `["integrations", projectId]`, `["integrations", "list"]`, and the nested GitHub repositories — data consumed by the still-present `GitIntegrationStep`. Removing the hook means those queries will now be fetched on-demand when the user arrives at the GitHub step, adding a visible loading delay that didn't exist before. Consider either keeping the integrations-only prefetch (renaming the hook to reflect its scope) or adding an equivalent prefetch inside `GitIntegrationStep` itself.

_{Reviews (1): Last reviewed commit: "Remove signals step to improve conversio..." | Re-trigger Greptile}

[greptile-apps]

Lost prefetch for GitHub integration step

usePrefetchSignalData was also eagerly prefetching ["integrations", projectId], ["integrations", "list"], and the nested GitHub repositories — data consumed by the still-present GitIntegrationStep. Removing the hook means those queries will now be fetched on-demand when the user arrives at the GitHub step, adding a visible loading delay that didn't exist before. Consider either keeping the integrations-only prefetch (renaming the hook to reflect its scope) or adding an equivalent prefetch inside GitIntegrationStep itself.

Prompt To Fix With AI

This is a comment left during a code review.
Path: apps/code/src/renderer/features/onboarding/components/OnboardingFlow.tsx
Line: 46

Comment:
**Lost prefetch for GitHub integration step**

`usePrefetchSignalData` was also eagerly prefetching `["integrations", projectId]`, `["integrations", "list"]`, and the nested GitHub repositories — data consumed by the still-present `GitIntegrationStep`. Removing the hook means those queries will now be fetched on-demand when the user arrives at the GitHub step, adding a visible loading delay that didn't exist before. Consider either keeping the integrations-only prefetch (renaming the hook to reflect its scope) or adding an equivalent prefetch inside `GitIntegrationStep` itself.

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