Delivery receipts for a post

Also how a post is shown again: the reply carries approval_url, a signed link to the post as a picture of itself (caption, destinations, outcome), for every status — an already-decided post cannot be decided through it. Per-platform delivery receipts: each targeted account gets its own row with status, retries, the live post URL on success, or error detail on failure. A successful row may also carry note, with note_kind saying what it means: "info" — the post went out whole and the note only says how (the pin used the account's catch-all board because none was picked) — or null, meaning something was left behind (X takes 4 images, Facebook won't let an app post photos and video together, a reel is one clip). Check this after publish time and report honestly — including partial failures and any note. Don't re-post over an info note: nothing is missing.