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_version_pinning_pin_unpin.py

@@ -19,10 +19,10 @@ async def test_pin_version_sets_manual_kind_and_label():
     mock_version.pin_label = None
 
     with patch(
-        "scribe.services.version_pinning.async_session",
+        "grimoire.services.version_pinning.async_session",
         return_value=_mock_session_for_version(mock_version),
     ):
-        from scribe.services.version_pinning import pin_version
+        from grimoire.services.version_pinning import pin_version
         result = await pin_version(
             user_id=1, note_id=42, version_id=7, label="the runbook circa Q2",
         )
@@ -39,10 +39,10 @@ async def test_pin_version_accepts_null_label():
     mock_version.pin_label = None
 
     with patch(
-        "scribe.services.version_pinning.async_session",
+        "grimoire.services.version_pinning.async_session",
         return_value=_mock_session_for_version(mock_version),
     ):
-        from scribe.services.version_pinning import pin_version
+        from grimoire.services.version_pinning import pin_version
         await pin_version(user_id=1, note_id=42, version_id=7, label=None)
 
     assert mock_version.pin_kind == "manual"
@@ -56,10 +56,10 @@ async def test_pin_version_promotes_auto_to_manual_with_label_update():
     mock_version.pin_label = "stable 2026-04-01 → 2026-04-05"
 
     with patch(
-        "scribe.services.version_pinning.async_session",
+        "grimoire.services.version_pinning.async_session",
         return_value=_mock_session_for_version(mock_version),
     ):
-        from scribe.services.version_pinning import pin_version
+        from grimoire.services.version_pinning import pin_version
         await pin_version(
             user_id=1, note_id=42, version_id=7, label="post-network-refresh",
         )
@@ -77,10 +77,10 @@ async def test_pin_version_rejects_overlong_label():
     # even be entered. We still patch it to avoid accidental DB lookups
     # if the implementation order changes.
     with patch(
-        "scribe.services.version_pinning.async_session",
+        "grimoire.services.version_pinning.async_session",
         return_value=_mock_session_for_version(mock_version),
     ):
-        from scribe.services.version_pinning import pin_version
+        from grimoire.services.version_pinning import pin_version
         try:
             await pin_version(
                 user_id=1, note_id=42, version_id=7, label="x" * 501,
@@ -99,10 +99,10 @@ async def test_pin_version_returns_none_when_not_found():
     mock_session.refresh = AsyncMock()
 
     with patch(
-        "scribe.services.version_pinning.async_session",
+        "grimoire.services.version_pinning.async_session",
         return_value=mock_session,
     ):
-        from scribe.services.version_pinning import pin_version
+        from grimoire.services.version_pinning import pin_version
         out = await pin_version(user_id=1, note_id=42, version_id=99, label=None)
 
     assert out is None
@@ -114,10 +114,10 @@ async def test_unpin_version_clears_kind_and_label():
     mock_version.pin_label = "previous label"
 
     with patch(
-        "scribe.services.version_pinning.async_session",
+        "grimoire.services.version_pinning.async_session",
         return_value=_mock_session_for_version(mock_version),
     ):
-        from scribe.services.version_pinning import unpin_version
+        from grimoire.services.version_pinning import unpin_version
         result = await unpin_version(user_id=1, note_id=42, version_id=7)
 
     assert result is mock_version