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/ui/progress.tsx

@@ -1,29 +0,0 @@
-import * as React from "react"
-import * as ProgressPrimitive from "@radix-ui/react-progress"
-
-import { cn } from "@/lib/utils"
-
-function Progress({
-  className,
-  value,
-  ...props
-}: React.ComponentProps<typeof ProgressPrimitive.Root>) {
-  return (
-    <ProgressPrimitive.Root
-      data-slot="progress"
-      className={cn(
-        "bg-primary/20 relative h-2 w-full overflow-hidden rounded-full",
-        className
-      )}
-      {...props}
-    >
-      <ProgressPrimitive.Indicator
-        data-slot="progress-indicator"
-        className="bg-primary h-full w-full flex-1 transition-all"
-        style={{ transform: `translateX(-${100 - (value || 0)}%)` }}
-      />
-    </ProgressPrimitive.Root>
-  )
-}
-
-export { Progress }