docs(6209): calibration stamp, after-write hook, usage seam, work log, duplicates, skill structure, tuning and rulebook routes, kind surface, prompt filter, moments, strict args, auth, lesson write path

Fourteen more test files: docstrings state the failure each guard defends
as a present-tense shape instead of the incident that found it, and issue,
milestone and rule numbers leave comments and assertion messages.

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

tests/test_lesson_write_path.py

@@ -1,4 +1,4 @@
-"""Creating a lesson, and tying it to what taught it (milestone 385 step 4).
+"""Creating a lesson, and tying it to what taught it.
 
 THE TRIGGER IS THE RECORD, so the door refuses a lesson without one.
 
@@ -136,8 +136,8 @@ async def test_the_gate_compares_the_composed_document_not_the_raw_fields():
 
 
 def test_a_lesson_is_judged_at_the_trigger_dominated_bar():
-    """#2518 measured deliberately-parallel siblings at 0.92 on a document that
-    is mostly prose ABOUT the thing. A lesson's document is that shape, so the
+    """Deliberately-parallel siblings measure 0.92 on a document that is
+    mostly prose ABOUT the thing. A lesson's document is that shape, so the
     bar sits above that band — otherwise two different lessons about one area
     block each other, which is the failure step 4 asked to check for."""
     from scribe.services.dedup import (
@@ -153,7 +153,7 @@ def test_a_lesson_is_judged_at_the_trigger_dominated_bar():
     )
     assert _LESSON_SEMANTIC_THRESHOLD > _SEMANTIC_THRESHOLD
     # The carve-out is per kind, not a loosening of the gate: a lesson's bar is
-    # its own, apart from the note's copy band (#4306).
+    # its own, apart from the note's copy band.
     from scribe.services.dedup import _NOTE_COPY_THRESHOLD
 
     assert _semantic_threshold("note") == _NOTE_COPY_THRESHOLD
@@ -163,7 +163,7 @@ def test_a_lesson_is_judged_at_the_trigger_dominated_bar():
 @pytest.mark.asyncio
 async def test_an_update_recomposes_both_halves_of_the_document():
     """A new trigger has to reach the mirror AND the head of the body — the two
-    places the embedded document reads it from (milestone 427). Patching one
+    places the embedded document reads it from. Patching one
     would leave a lesson that reads correctly and ranks on the old situation —
     the failure mode with no symptom. The title stays the subject, even when
     the stored one was an un-migrated composed title."""