docs(6209): forty test files — design cascade and stylesheet, embeddings, family canon, forge, backup round trips, inception, placement, platforms, moments, rule move and verification, search scope, facets

Module and test docstrings state what is pinned without the record number
or step that introduced it. Incident accounts become the failure shape in
the present tense: the pipefail head, the code_shapes import, the export
order, the facet dialects, the cross-kind repeat, the write-once kind.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

tests/test_family_adoption.py

@@ -1,4 +1,4 @@
-"""The adoption ledger without a database (milestone 463 step 4).
+"""The adoption ledger without a database.
 
 The parts that decide are pure and pinned here: what an assessment needs
 before it can be recorded, what each ground of the conflict order needs —
@@ -166,7 +166,7 @@ def test_no_reference_at_all_points_at_the_idea():
 # --- the product text and the doors ---------------------------------------------------
 
 def test_the_outcomes_the_agent_is_told_are_the_ones_enforced():
-    """Rule 119: the outcomes and the order are product text. The tool
+    """The outcomes and the order are product text. The tool
     docstrings must name every outcome and every ground the service checks,
     in the service's order."""
     assess_doc = tool_doc("scribe.mcp.tools.family", "assess_family_adoption")