c6a38e2fc6
Removes Instagram permissions from the Facebook Messenger inbox setup flow to avoid blocking Meta App Review for Messenger-only apps. Meta rejects or stalls Messenger-only app reviews when the OAuth flow requests unrelated Instagram permissions such as `instagram_basic` and `instagram_manage_messages`. This blocks approval for Messenger permissions like `human_agent`, even when the user only wants to configure a Facebook Messenger inbox. New Facebook Messenger inbox setup now requests only the Page and Messenger permissions required for Messenger. Existing Facebook Messenger inboxes that already have Instagram details continue to request Instagram permissions during reauthorization, preserving support for the legacy combined Facebook/Instagram inbox flow. Going forward, new Instagram setups should use the dedicated Instagram channel inbox instead of being bundled into the Messenger setup flow. Closes #13860 ## How to test 1. Go to Settings → Inboxes → Add Inbox → Facebook Messenger. 2. Click Login with Facebook. 3. Verify the OAuth scope does not include `instagram_basic` or `instagram_manage_messages`. 4. Reauthorize an existing Facebook Messenger inbox with `instagram_id` present. 5. Verify the reauth scope still includes `instagram_basic` and `instagram_manage_messages`. --------- Co-authored-by: Muhsin <12408980+muhsin-k@users.noreply.github.com>