First public release.
Download the ZIP below, extract it to a permanent folder (for example C:\HarkovIndexer), and run harkovindexer-app.exe. On first start the app creates HarkovIndexer-data\ next to the exe.
You need a property in Google Search Console and a Google Service Account key added as Owner on that property. See README for the full walkthrough.
Verify your download before extracting:
SHA256: 1A3C1862C06C54544BA07427E28B511D7F043082EB5162159127BB41C1B0D4D9
A successful submit (HTTP 200) means Google received the request. It does not mean the page is indexed. Only an inspect result shows index state.