[codex][otel] propagate user email in otel events (#5223)

include user email into otel events for proper user-level attribution in
case of workspace setup

codex-rs/core/src/auth.rs

@@ -135,6 +135,10 @@ impl CodexAuth {
         self.get_current_token_data().and_then(|t| t.account_id)
     }
 
+    pub fn get_account_email(&self) -> Option<String> {
+        self.get_current_token_data().and_then(|t| t.id_token.email)
+    }
+
     pub(crate) fn get_plan_type(&self) -> Option<PlanType> {
         self.get_current_token_data()
             .and_then(|t| t.id_token.chatgpt_plan_type)

codex-rs/core/src/client.rs

@@ -1030,6 +1030,7 @@ mod tests {
             "test",
             "test",
             None,
+            Some("test@test.com".to_string()),
             Some(AuthMode::ChatGPT),
             false,
             "test".to_string(),

codex-rs/core/src/codex.rs

@@ -445,6 +445,7 @@ impl Session {
             config.model.as_str(),
             config.model_family.slug.as_str(),
             auth_manager.auth().and_then(|a| a.get_account_id()),
+            auth_manager.auth().and_then(|a| a.get_account_email()),
             auth_manager.auth().map(|a| a.mode),
             config.otel.log_user_prompt,
             terminal::user_agent(),
@@ -2744,6 +2745,7 @@ mod tests {
             config.model.as_str(),
             config.model_family.slug.as_str(),
             None,
+            Some("test@test.com".to_string()),
             Some(AuthMode::ChatGPT),
             false,
             "test".to_string(),