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_chunking.py

@@ -10,7 +10,7 @@ its topical anchor.
 """
 import re
 
-from scribe.services.embeddings import (
+from grimoire.services.embeddings import (
     _CHUNK_CHAR_BUDGET,
     _MIN_CHUNK_CONTENT,
     chunk_document,
@@ -228,7 +228,7 @@ async def test_search_collapses_chunk_rows_to_best_chunk_per_note():
     long record fills the top-k with copies of itself."""
     from unittest.mock import AsyncMock, MagicMock, patch
 
-    from scribe.services import embeddings as emb
+    from grimoire.services import embeddings as emb
 
     note_a, note_b = MagicMock(id=1), MagicMock(id=2)
     # Rows are (Note, distance, chunk_index, chunk_text) — the chunk columns
@@ -289,7 +289,7 @@ def _session_ctx(log_rows=()):
 async def test_upsert_stores_one_versioned_row_per_chunk():
     from unittest.mock import AsyncMock, patch
 
-    from scribe.services import embeddings as emb
+    from grimoire.services import embeddings as emb
 
     body = "\n\n".join(
         f"## Section {i}\n\n{_long_section(f'sec-{i}')}" for i in range(6)
@@ -324,7 +324,7 @@ async def test_a_tasks_work_logs_reach_the_rows_it_is_stored_as():
     import datetime
     from unittest.mock import AsyncMock, patch
 
-    from scribe.services import embeddings as emb
+    from grimoire.services import embeddings as emb
 
     session, ctx = _session_ctx(
         log_rows=[(datetime.datetime(2026, 9, 20), "ruled out the cache theory")]
@@ -348,7 +348,7 @@ async def test_upsert_of_an_emptied_record_clears_rows_instead_of_embedding():
     longer says."""
     from unittest.mock import patch
 
-    from scribe.services import embeddings as emb
+    from grimoire.services import embeddings as emb
 
     session, ctx = _session_ctx()
     with (
@@ -369,7 +369,7 @@ async def test_backfill_reembeds_notes_with_a_stale_chunker_version():
     table wipe. Only rows AT the current version count as done."""
     from unittest.mock import AsyncMock, MagicMock, patch
 
-    from scribe.services import embeddings as emb
+    from grimoire.services import embeddings as emb
 
     def _ids(*values):
         r = MagicMock()
@@ -404,10 +404,10 @@ def test_a_row_is_current_only_in_the_live_models_space():
     """The column is a width, not an identity, so a same-width model
     swap writes a second geometry with no error. The backfill's "current"
     predicate has to name BOTH halves of the stamp, on every embedding table."""
-    from scribe.models.embedding import (
+    from grimoire.models.embedding import (
         MilestoneEmbedding, NoteEmbedding, RuleEmbedding, SystemEmbedding,
     )
-    from scribe.services import embeddings as emb
+    from grimoire.services import embeddings as emb
 
     for table in (NoteEmbedding, RuleEmbedding, MilestoneEmbedding, SystemEmbedding):
         clause = str(emb.is_current_stamp(table))