Returns the share snapshot. Despite the /shared/ prefix this
endpoint still requires authentication - iak_* instance keys
and end-user JWTs both work, but anonymous callers are rejected.
The response sets is_mine: true when the caller owns the share.
Documentation Index
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Use this file to discover all available pages before exploring further.
User session JWT or instance API key (iak_*).
Send as Authorization: Bearer <token>.
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