refactor(inbox): rename flag to posthog-code-inbox-hidden with inverted logic

[joshsny]

Problem

The posthog-code-inbox flag requires being turned on to show the inbox, which means new users/teams see no inbox by default. We want the inbox visible by default and only hidden for specific teams or users when needed.

Changes

• Renamed the feature flag from posthog-code-inbox to posthog-code-inbox-hidden
• Inverted all boolean logic across 7 files so the inbox is shown by default and only hidden when the flag is enabled
• Updated variable names from inboxEnabled to inboxHidden for clarity

Files changed:

• SidebarMenu.tsx — sidebar inbox item + polling gated on !inboxHidden
• MainLayout.tsx — inbox view render gated on !inboxHidden
• GlobalEventHandlers.tsx — mod+i hotkey enabled when !inboxHidden
• KeyboardShortcutsSheet.tsx — inbox shortcut filtered when inboxHidden
• SettingsDialog.tsx — signals settings entry filtered when inboxHidden
• useOnboardingFlow.ts — signals onboarding step filtered when inboxHidden
• WelcomeScreen.tsx — signals inbox feature bullet filtered when inboxHidden

Note: The corresponding PostHog feature flag needs to be renamed from posthog-code-inbox to posthog-code-inbox-hidden and kept at 0% rollout (off for everyone, so inbox is visible to all by default). Enable it only for specific users/teams you want to hide the inbox from.

How did you test this?

• Verified all 7 references updated with grep — no remaining posthog-code-inbox (without -hidden) references
• Typecheck passes (pre-existing errors in unrelated @posthog/platform modules only)
• Biome lint passes cleanly

Slack Thread

  

[greptile-apps]

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