What changed

Settings that require the Pro upgrade now show a small star icon next to their title, so you can see which features need Pro before tapping and getting bounced to the upgrade screen. The indicator is consistent across General Settings (theme mode/style/color), Reaction Settings (auto-play, auto-pause, auto-connect, popups) and Device Settings (sleep detection, stem actions, noise-control cycle customization). Switches remain visible, so users who had Pro and lost it can still toggle off a previously-enabled pro feature without first having to upgrade again.

Technical Context

• Unifies three inconsistent pro-gating UI patterns (TextButton in the Appearance category header, star-replaces-switch in Reactions/Sleep Detection, and silent gates in Noise Control/Stem Actions) into a single proLocked parameter on SettingsBaseItem that renders a 16 dp primary-tinted star inline after the title. The parameter propagates through SettingsSwitchItem, SettingsListPreferenceItem, SettingsPreferenceItem as a one-line pass-through each.
• Keeping the Switch visible (instead of replacing it with the star) fixes a latent UX bug flagged by Codex review: ex-pro users with an already-enabled reaction toggle previously had to tap the row once (silent disable) and then tap it again (only then the upgrade screen appeared). The ReactionSettingsViewModel.setXxx(false) path was already "free"; the old UI just hid it.
• For the listening-mode cycle, non-pro builds now pass cycleMask = null into NoiseControlCombined, hiding the eye/eye-off visibility buttons entirely. This also side-steps a double-nav bug where tapping the OFF visibility button fired both onCycleMaskChange and onAllowOffChange, each independently routed through sendProGated, producing two upgrade navigations per tap. A new dedicated "Noise Control Cycle" row appears directly below the ANC card with the standard pro indicator and routes to Upgrade on tap.
• Deletes the two duplicate local ProGatedToggle / ProGatedSwitchItem composables from ReactionSettingsScreen and DeviceSettingsScreen. Both were near-identical switch/star-swap helpers.
• No new strings: reuses the existing overview_anc_mode_requires_upgrade ("Requires upgrade") as the ProBadge contentDescription (flavor-neutral), and the existing device_settings_listening_mode_cycle_label/description for the new cycle row.
• Out of scope and intentionally left alone: the DeviceSettingsViewModel.sendProGated asymmetry — it gates both enable and disable behind Pro for sleep detection, listening-mode cycle and allow-off, unlike ReactionSettingsViewModel. Existing behavior, not addressed here.

Review checklist

• Non-pro user: General → Appearance shows plain category header with an inline star on Theme Mode / Style / Color, and tapping any of them navigates directly to Upgrade without opening a picker dialog first.
• Non-pro user: Reaction Settings rows show both the Switch and the inline star (not one-or-the-other).
• Non-pro user with a connected AirPods Pro: ANC card shows only the mode selection (no eye/eye-off visibility buttons); a new "Noise Control Cycle" row with a star appears directly below the card and routes to Upgrade on tap.
• Pro user: stars disappear, picker dialogs open, visibility buttons return, and the extra cycle row is not rendered.
• FOSS and gplay builds both compile and behave identically — the indicators live in shared code, not per-flavor.