refactor: rename package fabledassistant -> scribe (code-only)

Renames src/fabledassistant -> src/scribe and all imports, plus the
default DB name and DB user/password (fabled -> scribe) in config +
compose. 952 refs / 154 files. Reverses the old 'internal name stays
fabledassistant' convention.

Code-only: live databases are still physically named 'fabledassistant'.
Deployed environments must set POSTGRES_DB / POSTGRES_USER (or rename the
DB) since the defaults now resolve to 'scribe'. Repo (FabledScribe), git
host (fabledsword), MCP (fabled-git) and the image name (fabledscribe)
are intentionally unchanged.

ruff check src/ clean locally; CI (typecheck + pytest) is the gate.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

tests/test_mcp_tool_trash.py

@@ -3,7 +3,7 @@ from unittest.mock import AsyncMock, patch
 
 import pytest
 
-from fabledassistant.mcp._context import _user_id_ctx
+from scribe.mcp._context import _user_id_ctx
 
 
 @pytest.fixture(autouse=True)
@@ -15,18 +15,18 @@ def _bind_user():
 
 @pytest.mark.asyncio
 async def test_list_trash_wraps_batches():
-    with patch("fabledassistant.mcp.tools.trash.trash_svc.list_trash",
+    with patch("scribe.mcp.tools.trash.trash_svc.list_trash",
                AsyncMock(return_value=[{"batch_id": "b1", "count": 2}])):
-        from fabledassistant.mcp.tools.trash import list_trash
+        from scribe.mcp.tools.trash import list_trash
         out = await list_trash()
     assert out["batches"][0]["batch_id"] == "b1"
 
 
 @pytest.mark.asyncio
 async def test_restore_delegates():
-    with patch("fabledassistant.mcp.tools.trash.trash_svc.restore",
+    with patch("scribe.mcp.tools.trash.trash_svc.restore",
                AsyncMock(return_value=3)) as mock:
-        from fabledassistant.mcp.tools.trash import restore
+        from scribe.mcp.tools.trash import restore
         out = await restore("b1")
     assert out == {"restored": 3, "batch_id": "b1"}
     assert mock.call_args.args == (7, "b1")
@@ -34,8 +34,8 @@ async def test_restore_delegates():
 
 @pytest.mark.asyncio
 async def test_purge_trash_requires_confirmed():
-    with patch("fabledassistant.mcp.tools.trash.trash_svc.purge", AsyncMock()) as mock:
-        from fabledassistant.mcp.tools.trash import purge_trash
+    with patch("scribe.mcp.tools.trash.trash_svc.purge", AsyncMock()) as mock:
+        from scribe.mcp.tools.trash import purge_trash
         out = await purge_trash("b1", confirmed=False)
     assert out.get("confirmed_required") is True
     assert not mock.called
@@ -43,16 +43,16 @@ async def test_purge_trash_requires_confirmed():
 
 @pytest.mark.asyncio
 async def test_purge_trash_when_confirmed():
-    with patch("fabledassistant.mcp.tools.trash.trash_svc.purge",
+    with patch("scribe.mcp.tools.trash.trash_svc.purge",
                AsyncMock(return_value=5)) as mock:
-        from fabledassistant.mcp.tools.trash import purge_trash
+        from scribe.mcp.tools.trash import purge_trash
         out = await purge_trash("b1", confirmed=True)
     assert out == {"purged": 5, "batch_id": "b1"}
     assert mock.called
 
 
 def test_register_attaches_three_tools():
-    from fabledassistant.mcp.tools.trash import register
+    from scribe.mcp.tools.trash import register
     names: list[str] = []
 
     class FakeMCP: