Check for predict-edits feature flag, remove is_staff check (#23165)

Release Notes:

- N/A

---------

Co-authored-by: Thorsten Ball <mrnugget@gmail.com>

crates/collab/src/llm/token.rs

@@ -22,6 +22,8 @@ pub struct LlmTokenClaims {
     pub github_user_login: String,
     pub is_staff: bool,
     pub has_llm_closed_beta_feature_flag: bool,
+    #[serde(default)]
+    pub has_predict_edits_feature_flag: bool,
     pub has_llm_subscription: bool,
     pub max_monthly_spend_in_cents: u32,
     pub custom_llm_monthly_allowance_in_cents: Option<u32>,
@@ -37,6 +39,7 @@ impl LlmTokenClaims {
         is_staff: bool,
         billing_preferences: Option<billing_preference::Model>,
         has_llm_closed_beta_feature_flag: bool,
+        has_predict_edits_feature_flag: bool,
         has_llm_subscription: bool,
         plan: rpc::proto::Plan,
         system_id: Option<String>,
@@ -58,6 +61,7 @@ impl LlmTokenClaims {
             github_user_login: user.github_login.clone(),
             is_staff,
             has_llm_closed_beta_feature_flag,
+            has_predict_edits_feature_flag,
             has_llm_subscription,
             max_monthly_spend_in_cents: billing_preferences
                 .map_or(DEFAULT_MAX_MONTHLY_SPEND.0, |preferences| {