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_family_adoption.py

@@ -12,8 +12,8 @@ from __future__ import annotations
 
 import pytest
 
-from scribe.mcp.server import _READ_ONLY_TOOLS, _WRITE_TOOLS
-from scribe.services.family_adoption import (
+from grimoire.mcp.server import _READ_ONLY_TOOLS, _WRITE_TOOLS
+from grimoire.services.family_adoption import (
     CONFLICT_KEYS, CONFLICT_ORDER, OUTCOME_KEYS, _fold_section, _reference_line,
     assessment_problems, conflict_problems, needs_recheck,
 )
@@ -169,10 +169,10 @@ def test_the_outcomes_the_agent_is_told_are_the_ones_enforced():
     """The outcomes and the order are product text. The tool
     docstrings must name every outcome and every ground the service checks,
     in the service's order."""
-    assess_doc = tool_doc("scribe.mcp.tools.family", "assess_family_adoption")
+    assess_doc = tool_doc("grimoire.mcp.tools.family", "assess_family_adoption")
     for n, key in enumerate(OUTCOME_KEYS, start=1):
         assert f"{n}. {key} —" in assess_doc, f"outcome {n} is not taught as {key}"
-    resolve_doc = tool_doc("scribe.mcp.tools.family", "resolve_family_conflict")
+    resolve_doc = tool_doc("grimoire.mcp.tools.family", "resolve_family_conflict")
     for n, key in enumerate(CONFLICT_KEYS, start=1):
         assert f"{n}. {key} —" in resolve_doc, f"ground {n} is not taught as {key}"
     assert [c["fold_as"] for c in CONFLICT_ORDER] == ["alternative", "trap", "condition", "alternative"]