Write panics and crashes to snowflake (#28284)

This will let us create a better crashes dashboard, using Hex.

Release Notes:

- N/A

crates/collab/src/llm.rs

@@ -591,7 +591,7 @@ async fn check_usage_limit(
 
             SnowflakeRow::new(
                 "Language Model Rate Limited",
-                claims.metrics_id,
+                Some(claims.metrics_id),
                 claims.is_staff,
                 claims.system_id.clone(),
                 json!({
@@ -719,7 +719,7 @@ impl<S> Drop for TokenCountingStream<S> {
                 });
                 SnowflakeRow::new(
                     "Language Model Used",
-                    claims.metrics_id,
+                    Some(claims.metrics_id),
                     claims.is_staff,
                     claims.system_id.clone(),
                     properties,