Flatten repo structure: move crawler/ to root, remove vqa/ and immoweb/

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.

crawler/frontend/src/components/Spinner.tsx

@@ -1,46 +0,0 @@
-import { cn } from '@/lib/utils';
-import { type VariantProps, cva } from 'class-variance-authority';
-import { Loader2 } from 'lucide-react';
-import React from 'react';
-
-const spinnerVariants = cva('flex-col items-center justify-center', {
-    variants: {
-        show: {
-            true: 'flex',
-            false: 'hidden',
-        },
-    },
-    defaultVariants: {
-        show: true,
-    },
-});
-
-const loaderVariants = cva('animate-spin text-primary', {
-    variants: {
-        size: {
-            small: 'size-6',
-            medium: 'size-8',
-            large: 'size-12',
-        },
-    },
-    defaultVariants: {
-        size: 'medium',
-    },
-});
-
-interface SpinnerContentProps
-    extends VariantProps<typeof spinnerVariants>,
-    VariantProps<typeof loaderVariants> {
-    className?: string;
-    children?: React.ReactNode;
-}
-
-export function Spinner({ size, show, children, className }: SpinnerContentProps) {
-    return (
-        <span className={spinnerVariants({ show })}>
-            <Loader2 className={cn(loaderVariants({ size }), className)} />
-            {/* <span className="text-red-400">Loading with custom style</span> */}
-            {children}
-        </span>
-    );
-}