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-api/src/routes/loops.rs

@@ -49,14 +49,13 @@ async fn ensure_loop_container(pool: &PgPool, workspace_id: Uuid, loop_id: Uuid)
         }
     };
     let state_root = loop_state_root().join(loop_id.to_string()).join("state");
-    let spawned =
-        match crate::research_container::spawn_loop(&docker, loop_id, &state_root).await {
-            Ok(s) => s,
-            Err(e) => {
-                eprintln!("loops::ensure_loop_container({loop_id}): spawn failed: {e}");
-                return;
-            }
-        };
+    let spawned = match crate::research_container::spawn_loop(&docker, loop_id, &state_root).await {
+        Ok(s) => s,
+        Err(e) => {
+            eprintln!("loops::ensure_loop_container({loop_id}): spawn failed: {e}");
+            return;
+        }
+    };
     if let Err(e) = cm_db::repo::loops::set_zeroclaw_container(
         pool,
         loop_id,