3.2.12

direct_send() now uses the same navigation chain in its request header and body for text, links and replies.

• Add optional keyword-only nav_chain; omitting it preserves the historical body chain.
• Support send_attribute="inbox" alongside the existing attribution values.
• Keep navigation overrides local to each request, including overlapping async sends.
• Reject non-printable/non-ASCII chains and leading or trailing whitespace before dispatch.

Thanks @multisteam for the official-app captures that helped establish the request format. Related Direct restrictions remain tracked in instagrapi #2870.

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