fix(6471): the end-of-turn shape check hears every definition a write made

The write hooks recorded at most 12 definitions per write (alphabetical,
so test functions were the ones dropped) and the post-Bash hook stopped
after 4 files, so the Stop hook never asked about the rest. The caps
bound the prior-art query; the written ledger now gets the full list,
up to 40 files per Bash call, while the query stays at 4 files x 12 names.

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

tests/test_after_write_hook.py

@@ -90,6 +90,23 @@ def test_after_write_names_what_bash_just_wrote_then_stays_quiet_until_the_next_
         assert seen[0]["exclude_derive"] == ["dup:483a"]
         assert set(seen[0]["shapes"][0].split(",")) == {"css:log-empty", "css:other"}
 
+def test_after_write_records_every_definition_for_the_turn_but_queries_only_the_first_four_files(tmp_path):
+    """The end-of-turn ledger hears every file and every definition a Bash call
+    wrote; the prior-art arms stay bounded to four files and twelve names."""
+    with http_sink(SINK_REPLY) as (port, seen):
+        env = _env(tmp_path, url=f"http://127.0.0.1:{port}")
+        repo = _repo(tmp_path, env)
+        for n in range(6):
+            body = "".join(f"def f{n}_{i:02d}():\n    return {i}\n\n" for i in range(15))
+            (repo / f"gen{n}.py").write_text(body)
+        _run(repo, env, session="s-many")
+        ledger = (tmp_path / "grimoire-priorart" / "s-many.written.ids").read_text().splitlines()
+        assert len(ledger) == 6 * 15
+        assert "gen5.py\tsym\tf5_14" in ledger
+        assert len(seen) == 4
+        assert all(len(q["shapes"][0].split(",")) == 12 for q in seen)
+
+
 def test_after_write_is_silent_where_it_has_nothing_to_say(tmp_path):
     env = _env(tmp_path)
     repo = _repo(tmp_path, env)