V4 implemented. Some tweaking left, but it is working

tests/test_db.py

@@ -2,6 +2,8 @@
 
 import pytest
 from sqlalchemy import inspect
+from sqlmodel import select
+from sqlmodel.ext.asyncio.session import AsyncSession
 
 from transcription.config import Settings
 from transcription.config import SqliteSettings
@@ -9,6 +11,8 @@ from transcription.db import create_all
 from transcription.db import dispose_database_runtime
 from transcription.db import initialize_database_runtime
 from transcription.db import session_scope
+from transcription.db.models import DocumentType
+from transcription.db.models import PersonRole
 
 
 @pytest.mark.asyncio
@@ -26,7 +30,9 @@ async def test_create_all_creates_expected_tables(tmp_path):
             table_names = set(await conn.run_sync(lambda c: inspect(c).get_table_names()))
 
         assert "document" in table_names
+        assert "document_type" in table_names
         assert "person" in table_names
+        assert "person_role" in table_names
         assert "document_person" in table_names
         assert "job" in table_names
         assert "source" in table_names
@@ -52,6 +58,27 @@ async def test_get_session_yields_async_session(tmp_path):
         await dispose_database_runtime()
 
 
+@pytest.mark.asyncio
+async def test_create_all_seeds_default_registry_rows(tmp_path):
+    settings = Settings(
+        openrouter_api_key="test-key",
+        database=SqliteSettings(path=str(tmp_path / "seed.db")),
+        environment="test",
+    )
+    runtime = initialize_database_runtime(settings=settings)
+
+    try:
+        await create_all(engine=runtime.engine)
+        async with AsyncSession(runtime.engine, expire_on_commit=False) as session:
+            role_codes = set((await session.exec(select(PersonRole.code))).all())
+            type_codes = set((await session.exec(select(DocumentType.code))).all())
+
+        assert {"author", "recipient", "mentioned"}.issubset(role_codes)
+        assert {"letter", "record", "memo"}.issubset(type_codes)
+    finally:
+        await dispose_database_runtime()
+
+
 def test_bootstrap_policy_production_defaults_false():
     settings = Settings(openrouter_api_key="test-key", environment="production")
     assert settings.should_bootstrap_schema is False