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_dashboard.py

@@ -10,7 +10,7 @@ import pytest
 
 
 def test_task_row_maps_fields():
-    from scribe.services.dashboard import _task_row
+    from grimoire.services.dashboard import _task_row
     n = MagicMock()
     n.id = 5
     n.title = "Wire reminders"
@@ -34,7 +34,7 @@ def test_task_row_carries_the_kind_so_a_row_can_show_it():
     correct and the payload is short — so the guard belongs on the payload,
     where the omission actually was.
     """
-    from scribe.services.dashboard import _task_row
+    from grimoire.services.dashboard import _task_row
     n = MagicMock()
     n.id = 1
     n.title = "t"
@@ -46,7 +46,7 @@ def test_task_row_carries_the_kind_so_a_row_can_show_it():
 
 @pytest.mark.asyncio
 async def test_safe_returns_value_then_empty_on_error():
-    from scribe.services.dashboard import _safe
+    from grimoire.services.dashboard import _safe
 
     async def ok():
         return [1, 2, 3]
@@ -62,7 +62,7 @@ async def test_safe_returns_value_then_empty_on_error():
 
 @pytest.mark.asyncio
 async def test_build_dashboard_composes_sections():
-    import scribe.services.dashboard as dash
+    import grimoire.services.dashboard as dash
     with patch.object(dash, "_active_projects", AsyncMock(return_value=["P"])), \
          patch.object(dash, "_recently_completed", AsyncMock(return_value=["done"])), \
          patch.object(dash, "_open_issues", AsyncMock(return_value=["iss"])), \
@@ -78,7 +78,7 @@ async def test_build_dashboard_composes_sections():
 
 @pytest.mark.asyncio
 async def test_build_dashboard_isolates_failing_section():
-    import scribe.services.dashboard as dash
+    import grimoire.services.dashboard as dash
     with patch.object(dash, "_active_projects", AsyncMock(side_effect=RuntimeError("db down"))), \
          patch.object(dash, "_recently_completed", AsyncMock(return_value=["done"])), \
          patch.object(dash, "_open_issues", AsyncMock(return_value=[])), \