stop pointing a public page at a private example

loom-cli's builder measured all three things we had published and none could be
fetched by somebody who is not us: settled 404, .loom fetchable but not where a
reader lands, and homelab-cluster 404 while this page named it as the canonical
answer. Three for three.

A public page naming a private thing as its canonical answer is worse than no
example — it costs the reader a request and their confidence in the rest of the
page. The page now says the example exists, is private, and why, and does not
link it.

The diagnosis is theirs and worth keeping: publication was being treated as a
change of directory rather than the act publication.md describes. Moving a file
into published/ is not publishing; the file becoming fetchable is.

And reachable, the command we nearly cut for being a third kind of thing, found
all three on the day it would have shipped.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

.loom/published/starting.md

@@ -60,9 +60,13 @@ what they came for.*
 
 ## Look at one instead of reading this
 
-**[`jeffry/homelab-cluster`](https://git.hypertheory-labs.dev/jeffry/homelab-cluster)**
-— *six documents, one gap, no decomposition, and a `README` that says what the
-root documents are for and what these are for.*
+**There is a worked example — six documents, one gap, no decomposition — and it
+is private.**
 
-**It is a better answer than this page**, and if the two ever disagree, it is
-right.
+*It describes a cluster in enough detail to be a target list, so it is not
+published, and **this page will not link you to something you cannot fetch.***
+**If you have access, ask for it by name; if you do not, the two questions at the
+top are the whole of it.**
+
+> **A public page naming a private thing as its canonical answer is worse than no
+> example**, and this page did exactly that until somebody measured it.