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_scan.py

@@ -19,7 +19,7 @@ def _v(version_id: int, days_ago: int, pin_kind=None):
 
 def test_promote_stable_versions_pins_versions_with_2_day_gap():
     """Versions followed by another version >= 2 days later get promoted."""
-    from scribe.services.version_pinning import (
+    from grimoire.services.version_pinning import (
         _promote_stable_versions_for_note,
     )
     # 3 versions: v1 (10 days ago), v2 (5 days ago), v3 (1 day ago)
@@ -35,7 +35,7 @@ def test_promote_stable_versions_pins_versions_with_2_day_gap():
 
 def test_promote_stable_versions_pins_latest_if_old_enough():
     """If the latest version is >= 2 days old with no successor, pin it."""
-    from scribe.services.version_pinning import (
+    from grimoire.services.version_pinning import (
         _promote_stable_versions_for_note,
     )
     versions = [_v(1, 10), _v(2, 3)]   # latest is 3 days old
@@ -44,7 +44,7 @@ def test_promote_stable_versions_pins_latest_if_old_enough():
 
 
 def test_promote_stable_versions_skips_already_pinned():
-    from scribe.services.version_pinning import (
+    from grimoire.services.version_pinning import (
         _promote_stable_versions_for_note,
     )
     versions = [_v(1, 10, pin_kind="manual"), _v(2, 5)]
@@ -67,7 +67,7 @@ def test_promote_stable_versions_skips_active_editing():
         id=2, created_at=base - timedelta(hours=2),
         pin_kind=None, pin_label=None,
     )
-    from scribe.services.version_pinning import (
+    from grimoire.services.version_pinning import (
         _promote_stable_versions_for_note,
     )
     pinned = _promote_stable_versions_for_note([v1, v2])
@@ -76,7 +76,7 @@ def test_promote_stable_versions_skips_active_editing():
 
 def test_promote_stable_versions_writes_descriptive_label():
     """The auto-generated label references stability."""
-    from scribe.services.version_pinning import (
+    from grimoire.services.version_pinning import (
         _promote_stable_versions_for_note,
     )
     versions = [_v(1, 10), _v(2, 5), _v(3, 1)]
@@ -94,7 +94,7 @@ def test_promote_stable_versions_naive_datetime_is_treated_as_utc():
         SimpleNamespace(id=1, created_at=naive_old, pin_kind=None, pin_label=None),
         SimpleNamespace(id=2, created_at=naive_recent, pin_kind=None, pin_label=None),
     ]
-    from scribe.services.version_pinning import (
+    from grimoire.services.version_pinning import (
         _promote_stable_versions_for_note,
     )
     pinned = _promote_stable_versions_for_note(versions)
@@ -105,7 +105,7 @@ def test_promote_stable_versions_naive_datetime_is_treated_as_utc():
 async def test_scan_user_for_auto_pins_iterates_all_notes(monkeypatch):
     """scan_user_for_auto_pins iterates every note for the user and calls
     the per-note flow on each, summing returned counts."""
-    from scribe.services import version_pinning
+    from grimoire.services import version_pinning
 
     note_ids = [10, 20, 30]
     seen: list[int] = []
@@ -136,7 +136,7 @@ async def test_scan_user_for_auto_pins_iterates_all_notes(monkeypatch):
 async def test_scan_user_for_auto_pins_swallows_per_note_errors(monkeypatch):
     """One bad note doesn't stop the scan; the error is logged and the
     others continue."""
-    from scribe.services import version_pinning
+    from grimoire.services import version_pinning
 
     async def fake_list_note_ids(uid):
         return [10, 20, 30]