Drop qt_users dependency for configs and track app version

migrations/006_add_local_configuration_versions.sql

@@ -14,6 +14,7 @@ CREATE TABLE local_configuration_versions (
     data TEXT NOT NULL,
     change_note TEXT NULL,
     created_by TEXT NULL,
+    app_version TEXT NULL,
     created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
     FOREIGN KEY (configuration_uuid) REFERENCES local_configurations(uuid),
     UNIQUE(configuration_uuid, version_no)
@@ -36,6 +37,7 @@ INSERT INTO local_configuration_versions (
     data,
     change_note,
     created_by,
+    app_version,
     created_at
 )
 SELECT
@@ -58,10 +60,12 @@ SELECT
         'synced_at', synced_at,
         'sync_status', sync_status,
         'original_user_id', original_user_id,
-        'original_username', original_username
+        'original_username', original_username,
+        'app_version', NULL
     ) AS data,
     'Initial snapshot backfill (v1)' AS change_note,
     NULL AS created_by,
+    NULL AS app_version,
     COALESCE(created_at, CURRENT_TIMESTAMP) AS created_at
 FROM local_configurations;