fix(app): disable native back-swipe on host screens

[thedavidweng]

What

On native iOS, the default React Navigation back-swipe gesture was enabled on workspace and other host screens. Swiping right would navigate back (often to a different host screen) instead of opening the sidebar.

Changes

Disable the native gesture on all screens inside the MobileGestureWrapper (workspace, agent, host index, sessions, open-project) so that right-swipes are handled by the wrapper Pan gesture, which opens the sidebar as expected.

Fixes #1321

[greptile-apps]

Greptile Summary

This PR extends the existing gestureEnabled: false option — previously applied only to the agent screen — to all five host screens that live inside MobileGestureWrapper (workspace, agent, host index, sessions, open-project), preventing the native iOS back-swipe from conflicting with the sidebar pan gesture. It also renames the constant to GESTURE_DISABLED_OPTIONS and adds a comment explaining the constraint.

• Gesture option broadened: gestureEnabled: false is now consistently applied to all host screens covered by MobileGestureWrapper, fixing the regression where swiping right navigated back instead of opening the sidebar.
• h/[serverId]/settings is intentionally left without the option, consistent with it not being wrapped by MobileGestureWrapper.

Confidence Score: 5/5

Minimal, targeted change with no logic risk — safe to merge.

The change is a one-liner repeated across five screen declarations, with a rename and comment added for clarity. The screens that need the option get it; the settings screen that should not is correctly left out. No new dependencies, no new state, no risk of breakage on other platforms since gestureEnabled is ignored outside iOS native stack.

No files require special attention.

Important Files Changed

Filename	Overview
packages/app/src/app/_layout.tsx	Renamed AGENT_SCREEN_OPTIONS to GESTURE_DISABLED_OPTIONS and applied gestureEnabled:false to all five MobileGestureWrapper host screens; h/[serverId]/settings correctly left unchanged.

Flowchart

%%{init: {'theme': 'neutral'}}%%
flowchart TD
    A[User swipes right on iOS host screen] --> B{gestureEnabled?}
    B -- "true (before fix)" --> C[Native back-swipe fires]
    C --> D[Navigates back to previous host screen]
    D --> E[❌ Sidebar does not open]
    B -- "false (after fix)" --> F[Native gesture suppressed]
    F --> G[MobileGestureWrapper Pan gesture captures swipe]
    G --> H[✅ Sidebar opens]

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