docs(privacy): the short reading's last fixes (ADR 0019)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Signed-off-by: Tizian 「ティツィアーン」 <raisondetredev@pm.me>

docs/adr/0019-private-studysets.md

@@ -275,9 +275,15 @@ the real gateways; each probe is a test now.
   has keys is the register's to say (`signInWays().password`), not the key
   rows'.
 - **Publishing** is refused on the device where anything in the tree is
-  sealed, before any tag's name goes out; a suggestion leaves sealed files
-  out.
+  sealed, before any tag's name goes out, and the Publish sheet lists the
+  names of the tags a release sends before Publish.
+- **Suggestions** carry the item's own id: a sealed file goes along readable
+  only where it is under the key of that item's tree; another private
+  tree's file, named by a row the instance planted, is left out.
+- **Finish** counts the edits a device without the keys wrote readable while
+  the studyset was made private, by kind, and asks: taken in, they are
+  sealed as the person's; left, they stay locked.
 
-Left open: the Publish sheet doesn't yet list the tag names it sends; Finish
-doesn't offer to adopt unsigned edits after asking; a suggestion from a
-private copy carries no files.
+Each test of a fixed finding was run on the code before (`a1adc18`) and
+failed there; one of an older readable record against a newer private one
+passed there too, as it guards what was right already.