Have you heard of Obsidian? It's a note-taking app build on locally stored markdown files with bidirectional linking and a great ecosystem of third party plugins. One of the most popular plugins is https://github.com/blacksmithgu/obsidian-dataview which lets you treat your notes as databases and query them to form tables. The creator has been working on its successor, Datacore https://github.com/blacksmithgu/datacore for a while - Datacore might come close to what you're looking for, its goals include WYSIWYG views and live editing inside tables.