fix(family): the repeat trigger compares a record only with its own kind - a snippet with snippets, a note with notes (#5130)

A dated release log (a note) matched a signed-APK CI snippet at 0.83 on
shared release vocabulary and was opened as a family candidate, then came
back as a precedent. One chunk of a long narrative scores like the shape
it mentions, so a cross-kind score does not mean "the same thing made
twice". The search is filtered to the new record's kind and the loop
checks it too. Code built from an idea written elsewhere still reaches the
engine through the citation trigger and the shape ledger.

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

tests/test_integration_family_promotion.py

@@ -278,6 +278,26 @@ async def test_a_repeat_with_no_shared_platform_is_silent(family):
     assert await _idea(family["note"]) is None
 
 
+async def test_a_repeat_across_kinds_is_silent(family):
+    """A snippet whose only match is a NOTE is not a repeat (#5130): a dated
+    release log scored 0.83 against a signed-APK CI snippet on shared
+    vocabulary and was opened as a candidate. The stub hands back the
+    cross-kind hit directly, so this pins the trigger's own check, not the
+    search filter in front of it."""
+    async with async_session() as s:
+        snippet = Note(user_id=family["owner"], project_id=family["b"], note_type="snippet",
+                       title="android-release lane", body="sign with the one release key")
+        s.add(snippet)
+        await s.commit()
+        await s.refresh(snippet)
+        original = await s.get(Note, family["note"])
+    assert original.note_type == "note"
+    with patch("scribe.services.embeddings.semantic_search_notes",
+               AsyncMock(return_value=[(0.86, original)])):
+        assert await family_svc.repeat_trigger(family["owner"], snippet) is None
+    assert await _idea(family["note"]) is None
+
+
 async def test_a_milestone_closing_on_a_platform_asks_and_one_off_platform_does_not(family):
     async with async_session() as s:
         on_platform = Milestone(user_id=family["owner"], project_id=family["a"], title="m1")