Drop the bordered card - it wasn't the right direction. Instead:
- Plain small checkbox with just a blue border (no fill/icon when
unchecked), matching the reference exactly.
- "Terms of Service"/"Privacy Policy" render as inline blue links
within the sentence (RichTextLabel + BBCode [url], routed through
the same _open_legal_document as the footer), instead of a duplicate
link row underneath. meta_underlined = false to match the
reference's plain (non-underlined) link style.
Verified with real rendered screenshots at each step, including a
pixel-level crop confirming the underline was actually gone.