feat: test integration connection (#669)

* feat: add test integration for pi-hole

* refactor: test integration for pi-hole

* fix: multiple secrets of same type could be used for integration creation

* fix: remove integration test connection test and add mock for test-connection function

* fix: add missing onUpdateFn to mysql integration secrets

* fix: format issues

* feat: add home assistant test connection

* fix: deepsource issues

* test: add system integration tests for test connection

* fix: add before all for pulling home assistant image

* test: add unit tests for handleTestConnectionResponseAsync

* test: add unit test for testConnectionAsync

* test: add mroe tests to integration-test-connection

* fix: deepsource issues

* fix: deepsource issue

* chore: address pull request feedback

packages/common/src/error.ts

@@ -9,3 +9,16 @@ export const extractErrorMessage = (error: unknown) => {
 
   return "Unknown error";
 };
+
+export abstract class FlattenError extends Error {
+  constructor(
+    message: string,
+    private flattenResult: Record<string, unknown>,
+  ) {
+    super(message);
+  }
+
+  public flatten(): Record<string, unknown> {
+    return this.flattenResult;
+  }
+}