docs: clarify setup sheet notices and agent identity

docs/case2/SETUP-SHEET.md

@@ -42,6 +42,18 @@ What the playground means for the agents:
 - Only the folder decides. A tag or a property can't make a note playground or canon. A playground
   folder is writable only when it is also marked `supporting`.
 
+### Colour the playground in your graph
+
+This is a setting of your own vault. It changes nothing for the agents.
+
+1. Open the graph view and open its settings panel.
+2. Under Groups, choose New group.
+3. In the query box, type the playground's path with `path:`. Your vault is `~/src`, so the path
+   starts with your books repo folder: `path:"<books repo folder>/<book>/<playground folder>"`.
+4. Pick a colour.
+
+Add one group per playground folder.
+
 ## Supporting folders
 
 A folder you mark as `supporting` is where agents may write `.md` notes. They cannot write anywhere
@@ -59,21 +71,10 @@ When you save a file in the Console, Mosaic makes a commit under the name and em
 `editor` in your `projects` entry. If that file moved after you opened it, Mosaic refuses the save and
 keeps your text so you can copy it or try again.
 
-Each time an agent creates, edits or deletes a supporting note, Mosaic makes a commit and shows you a
+Each time an agent creates, edits or deletes a supporting note, Mosaic makes a commit under that
-notice in the Console with a Revert button. Obsidian sees the change on its next pull. Supporting notes
+agent's own name and shows you a notice in the Console with a Revert button. Mosaic's own notices do
-may contain any text. You can read and revert every one.
+not need a citation. Obsidian sees the change on its next pull. Supporting notes may contain any text.
-
+You can read and revert every one.
-### Colour the playground in your graph
-
-This is a setting of your own vault. It changes nothing for the agents.
-
-1. Open the graph view and open its settings panel.
-2. Under Groups, choose New group.
-3. In the query box, type the playground's path with `path:`. Your vault is `~/src`, so the path
-   starts with your books repo folder: `path:"<books repo folder>/<book>/<playground folder>"`.
-4. Pick a colour.
-
-Add one group per playground folder.
 
 ## Two things you might not expect
 
@@ -137,7 +138,7 @@ optional by default. You or Jason can change these settings:
 
 | Setting | Default | What it does |
 |---|---:|---|
-| `requireCitation` | `false` | When true, each answer needs a citation. |
+| `requireCitation` | `false` | When true, each answer needs a citation. Mosaic's own notices do not. |
 | `citationsPerReply` | `20` | Maximum citations in one answer. |
 
 File citations in one answer must stay within one universe.