refactor(mono): migrate integration tests to Qlean VM framework (#1975)

* refactor(tests): migrate integration tests to Qlean VM framework and remove SQLite dependency

Signed-off-by: miliu2cc <miliu2cc@gmail.com>

* fix(mono): extract common test helpers and fix bugs

Signed-off-by: miliu2cc <miliu2cc@gmail.com>

* fix(mono): fix bugs

Signed-off-by: miliu2cc <miliu2cc@gmail.com>

* improve test reliability

Signed-off-by: miliu2cc <miliu2cc@gmail.com>

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Signed-off-by: miliu2cc <miliu2cc@gmail.com>

Author: miliu2cc