CLAUDE.md: the mistyped label separator errors now, it does not pass

This warned that `--label area:ops` "matches nothing and silently returns
unfiltered results". That stopped being true when hive-forge learned to suggest
the nearest name: it now exits non-zero with `unresolved label name(s): area:ops
(did you mean "area/ops"?)` and lists the available labels.

Measured, not assumed — the old text is what sent me looking for a silent
failure that no longer exists, which is the specific cost of a doc that
describes a fixed bug.

CLAUDE.md

@@ -11,9 +11,8 @@ when you need depth on a subsystem. This file is the index.
   the forge, so a hardcoded loopback address fails to connect.
 - Operator/agent trust-boundary design:
   **[docs/boundary.md](docs/boundary.md)** (`area/ops` issues
-  for the deployment/gateway/privsep work — the separator is a **slash**;
+  for the deployment/gateway/privsep work — the separator is a **slash**,
-  `--label area:ops` matches nothing and silently returns *unfiltered*
+  and `--label area:ops` now fails with `did you mean "area/ops"?`).
-  results, which reads like a backlog rather than like an error).
 - Agent trust model (trust boundary, prompt-injection threat model,
   capability = accepted risk), credential isolation + sandbox threat model:
   **[docs/security.md](docs/security.md)**.