docs(6209): task document, query scrubbing, note pipeline, lesson door, live body, ledger clear, rule usage

Seven more test files: docstrings and comments state the property and its
reason, the SQL-twin note states why `\m` and not `\b` without the install
it broke, and fixture provenance says "real near-miss queries" rather than
naming the spike that collected them.

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

tests/test_task_document_shape.py

@@ -1,10 +1,9 @@
-"""task_document — the document a TASK is embedded as, work logs included (#4251).
+"""task_document — the document a TASK is embedded as, work logs included.
 
 A work log is the richest record Scribe holds of *why* something is the way it
-is: prose written during the work, saying what was tried and ruled out. #4241
-made it readable. It was still not findable, so "has anyone tried this
-approach?" — the question a log answers — could not reach one, and #4208 was
-rebuilt in this very session because its logs were unreachable.
+is: prose written during the work, saying what was tried and ruled out. A log
+that is readable but not embedded is not findable, so "has anyone tried this
+approach?" — the question a log answers — cannot reach it.
 
 These tests pin the shape and the two properties the decision rested on: a task
 without logs embeds EXACTLY as it always did, and a task with them stays as
@@ -30,7 +29,7 @@ D2 = datetime.datetime(2026, 9, 21, 11, 0)
 def test_a_task_with_no_logs_embeds_exactly_as_it_did_before():
     """Most notes are not tasks and most tasks carry no log. Their vectors are
     the corpus this instance's thresholds were measured against, and changing
-    them for nothing would move every tuned number underneath itself (#4225)."""
+    them for nothing would move every tuned number underneath itself."""
     assert task_document("A title", "A body") == ("A title", "A body")
     assert task_document("A title", "A body", []) == ("A title", "A body")
     assert task_document("T", None) == ("T", None)
@@ -81,10 +80,9 @@ def test_an_entry_with_no_timestamp_still_gets_its_own_section():
 
 def test_each_log_becomes_its_own_title_anchored_chunk():
     """THE decision this build turns on. The objection to putting logs in the
-    task's document is that a long log drowns a short title — true before #280,
-    when one vector per record meant a 2,000-word log averaged the task's
-    subject away and everything past ~400 words was truncated unread. Chunking
-    answers both: separate vectors, each carrying the title as its anchor."""
+    task's document is that a long log drowns a short title — true of one
+    vector per record, where a 2,000-word log averages the task's subject away
+    and everything past ~400 words is truncated unread. Chunking answers both: separate vectors, each carrying the title as its anchor."""
     def _entry(subject: str) -> str:
         para = " ".join([f"This log entry discusses the {subject} in detail."] * 8)
         return "\n\n".join(f"{para} (p{i})" for i in range(6))
@@ -102,7 +100,7 @@ def test_each_log_becomes_its_own_title_anchored_chunk():
     # a log section and scored as part of it.
     assert any("Short body." in c and "alternative" not in c for c in chunks)
 
-    # And nothing is lost: this is what #280 exists for. Paragraph-shaped,
+    # And nothing is lost: this is what chunking exists for. Paragraph-shaped,
     # because that is what a log is and because a single unbroken 3,000-char
     # line is hard-split mid-line by design — `test_chunking` owns that case.
     joined = "\n".join(chunks)
@@ -113,7 +111,7 @@ def test_each_log_becomes_its_own_title_anchored_chunk():
 
 def test_a_short_task_with_a_short_log_is_still_one_sharp_chunk():
     """Over-splitting is not the goal either. A task and one short log stay a
-    single document, the shape note #2485 measured as the sharpest."""
+    single document, the shape that measures sharpest."""
     title, body = task_document("T", "body", [(D1, "a short note about it")])
     assert chunk_document(title, body) == [embedding_text(title, body)]
 
@@ -122,8 +120,8 @@ def test_a_short_task_with_a_short_log_is_still_one_sharp_chunk():
 #
 # The shaper above is pure. These pin that the writers actually call it — a
 # task whose logs are in the document but never re-indexed after one is written
-# is #4241's half-surface one layer down: the entry is readable, and the search
-# still answers as though it were never written.
+# is a half-surface one layer down: the entry is readable, and the search still
+# answers as though it were never written.
 
 from unittest.mock import AsyncMock, MagicMock, patch  # noqa: E402