The crawler subdirectory was the only active project. Moving it to the
repo root simplifies paths and removes the unnecessary nesting. The
vqa/ and immoweb/ directories were legacy/unused and have been removed.
Updated .drone.yml, .gitignore, .claude/ docs, and skills to reflect
the new flat structure.
* adding ruff auto check for pull requests as well as fixing all ruff errors
* More ruff fixes: forgot half of the ruff checks
Forgot to do a git add all :D
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Co-authored-by: Kadir <git@k8n.dev>