perf: Add index to sync status (#2337)

* - Add index to sync status

* - revert typo

* - revert unrelated schema.rb change

db/migrate/20250605031616_add_index_to_sync_status.rb

@@ -0,0 +1,7 @@
+class AddIndexToSyncStatus < ActiveRecord::Migration[7.2]
+  disable_ddl_transaction!
+
+  def change
+    add_index :syncs, :status, if_not_exists: true, algorithm: :concurrently
+  end
+end

db/schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema[7.2].define(version: 2025_05_23_131455) do
+ActiveRecord::Schema[7.2].define(version: 2025_06_05_031616) do
   # These are extensions that must be enabled in order to support this database
   enable_extension "pgcrypto"
   enable_extension "plpgsql"
@@ -593,6 +593,7 @@ ActiveRecord::Schema[7.2].define(version: 2025_05_23_131455) do
     t.date "window_start_date"
     t.date "window_end_date"
     t.index ["parent_id"], name: "index_syncs_on_parent_id"
+    t.index ["status"], name: "index_syncs_on_status"
     t.index ["syncable_type", "syncable_id"], name: "index_syncs_on_syncable"
   end