rename(547): the server is grimoire — package, image, DB defaults, backups

Step 2 of the Scribe -> Grimoire rename.

- src/scribe -> src/grimoire, and every import, patch target, module path,
  hypercorn entry point and `python -m grimoire.restore` with it; pyproject,
  uv.lock and the frontend package are named grimoire.
- Image git.fabledsword.com/bvandeusen/fabledgrimoire; CI's Postgres service
  runs as grimoire / grimoire_test.
- Compose files default the DB user, database and (prod) volume to grimoire,
  each overridable from .env, so an install created as Scribe keeps its data
  by setting POSTGRES_USER, POSTGRES_DB and PGDATA_VOLUME.
- Backups are written as grimoire-<ts>.tar with format grimoire-backup-tar.
  Archives named scribe-* with the scribe-backup-tar manifest still restore
  and are still counted at the destination (folder and S3), with tests.
- Exports, the MCP auth realm, the ASGI scope key and the persistent logger
  carry the new name.

Kept on purpose: the secret-sealing key label stays "scribe.secrets.v1",
because every stored secret was derived under it.

Plugin identity (plugin name, hooks, env vars, .scribe marker, skills) is
step 3.

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

tests/test_services_notes_task_kind.py

@@ -14,10 +14,10 @@ async def test_create_note_passes_task_kind_to_model():
         captured["task_kind"] = getattr(obj, "task_kind", "MISSING")
 
     mock_session.add = MagicMock(side_effect=_capture_add)
-    with patch("scribe.services.notes.async_session") as mock_cls, \
-         patch("scribe.services.notes._maybe_reactivate_project", AsyncMock()):
+    with patch("grimoire.services.notes.async_session") as mock_cls, \
+         patch("grimoire.services.notes._maybe_reactivate_project", AsyncMock()):
         mock_cls.return_value = mock_session
-        from scribe.services.notes import create_note
+        from grimoire.services.notes import create_note
         await create_note(user_id=1, title="P", status="todo", task_kind="plan")
     assert captured["task_kind"] == "plan"
 
@@ -29,9 +29,9 @@ async def test_list_notes_filters_by_task_kind():
     exec_result = MagicMock()
     exec_result.scalars.return_value.all.return_value = []
     mock_session.execute = AsyncMock(return_value=exec_result)
-    with patch("scribe.services.notes.async_session") as mock_cls:
+    with patch("grimoire.services.notes.async_session") as mock_cls:
         mock_cls.return_value = mock_session
-        from scribe.services.notes import list_notes
+        from grimoire.services.notes import list_notes
         # Should not raise; task_kind is a recognized kwarg.
         rows, total = await list_notes(user_id=1, is_task=True, task_kind="plan")
     assert rows == []