fmt: apply rustfmt across the P2 arc

CI's rustfmt check flagged the multi-line sqlx::query() calls I
introduced in P2 (loop_id_for_run, zeroclaw_gateway_url, etc.).
No behavior change — pure formatting.

crates/cm-db/src/repo/topology_runs.rs

@@ -186,12 +186,11 @@ pub async fn research_topic_id(pool: &PgPool, id: Uuid) -> Result<Option<Uuid>,
 /// None.
 pub async fn loop_id_for_run(pool: &PgPool, id: Uuid) -> Result<Option<Uuid>, DbError> {
     use sqlx::Row;
-    let row: Option<sqlx::postgres::PgRow> = sqlx::query(
-        "SELECT loop_id FROM topology_runs WHERE id = $1",
-    )
-    .bind(id)
-    .fetch_optional(pool)
-    .await?;
+    let row: Option<sqlx::postgres::PgRow> =
+        sqlx::query("SELECT loop_id FROM topology_runs WHERE id = $1")
+            .bind(id)
+            .fetch_optional(pool)
+            .await?;
     Ok(row.and_then(|r| r.try_get::<Option<Uuid>, _>("loop_id").ok().flatten()))
 }